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单词 activity
释义
  • activity

    高中/CET4/CET6

    • 英?[?k?t?v?ti]
    • 美?[?k?t?v?ti]

    释义

    • 常用
    • 高考讲解
    • n.
      活动,行动; 活跃
  • 词态变化

    • 复数:?activities;
  • 实用场景例句

    • 全部
    • 活动
    • 活跃
    • 敏捷
    • 活动力
    • 教育活动

    economic activity

    经济活动

    牛津词典

    The streets were noisy and full of activity.

    街上熙熙攘攘,车水马龙。

    牛津词典

    Muscles contract and relax during physical activity.

    身体活动时肌肉收缩放松。

    牛津词典

    leisure/outdoor/classroom activities

    休闲 / 户外 / 课堂活动

    牛津词典

    The club provides a wide variety of activities including tennis, swimming and squash.

    这家俱乐部的活动丰富多彩,诸如网球、游泳、壁球等。

    牛津词典

    illegal/criminal activities

    不法 / 犯罪活动

    牛津词典

    ...an extraordinary level of activity in the government bonds market.

    政府公债市场异常活跃

    柯林斯高阶英语词典

    ...the electrical activity of the brain.

    脑电波的活动

    柯林斯高阶英语词典

    You can take part in activities from canoeing to bird watching.

    你可以参与从划独木舟到观鸟等各种活动。

    柯林斯高阶英语词典

    ...a jail term for terrorist activities...

    因参与恐怖活动而被判的刑期

    柯林斯高阶英语词典

    On April 29, the activities of the company were suspended on the orders of the Bank of England.

    4月29日,奉英国银行之命,该公司的各项活动被暂停。

    柯林斯高阶英语词典

    Regular exercise conditions the body for strenuous activity.

    经常锻练使身体适应剧烈活动.

    《现代英汉综合大词典》

    Some drugs can cause the inhibition of normal bodily activity.

    有些药剂会对正常的身体功能产生抑制作用.

    《现代汉英综合大词典》

    The house has been full of activity all day.

    房子里整天都很热闹.

    《简明英汉词典》

    The human brain is the centre of higher nervous activity.

    人脑是高级神经活动的中心.

    《简明英汉词典》

    This business is a cover for unlawful activity.

    这家商行是搞非法活动的隐蔽处.

    《现代英汉综合大词典》

    Working with them was our most satisfying activity.

    和他们一起劳动是使我们感到最满意的一项活动.

    《简明英汉词典》

    We must expose this shameful activity to the newspapers.

    我们一定要向报社揭露这一无耻行径.

    《简明英汉词典》

    I learned to windsurf on an activity holiday.

    我参加主题活动假期时学会了风帆冲浪.

    《简明英汉词典》

    This sort of activity damages the reputation of the collective.

    这种行为有损于集体的荣誉.

    《现代汉英综合大词典》

    The construction site was a hive of activity.

    建筑工地上一片繁忙景象.

    《简明英汉词典》

    The office was really humming with activity.

    办公室里真是一片忙碌景象.

    《简明英汉词典》

    The days that preceded were filled with activity.

    前几天排满了活动.

    《简明英汉词典》

    the cumulative effect of human activity on the world environment

    人类活动对世界生态环境日积月累的影响

    《牛津高阶英汉双解词典》

    a sudden flurry of activity

    突然的频繁活动

    《牛津高阶英汉双解词典》

  • 真题例句

    • 全部
    • 四级
    • 六级
    • 高考
    • 考研

    Fantasy proneness could be considered a tendency to imagine and daydream, whereas absorption is the tendency to allow your mind to become absorbed in an activity – to pay complete attention to the sensations ( ' , 感受) and the experiences.

    出自-2017年6月阅读原文

    Digital technology also makes it easier for people to co-ordinate their activities without resorting to hierarchy.

    出自-2017年6月阅读原文

    A recent study of people with HSAM reveals that they are liable to fantasy and full absorption in an activity.

    出自-2017年6月阅读原文

    It might mean monitoring employee productivity on a digital leaderboard and offering prizes to the winners, or giving employees digital badges or stars for completing certain activities.

    出自-2016年12月阅读原文

    A part-time job is a good way to balance costs while ensuring there is enough time left over?for both academic subjects and after-class activities.

    出自-2016年12月听力原文

    What, then, are the effects of thinking about time in these different ways? Does one make us more productive? Better at the tasks at hand? Happier? In experiments conducted by Tamar Avnet and Anne-Laure Sellier, they had participants organize different activities—from project planning, holiday shopping, to yoga—by time or to-do list to measure how they performed under clock time vs task time.

    出自-2015年12月阅读原文

    No one is asking you to give up activities you like, but if you're watching food shows on TV, try cooking instead.

    出自-2015年12月阅读原文

    Instead of trying to get children to work hard, why not focus on getting them to take pleasure in meaningful, productive activity, like making things, working with others, exploring ideas, and solving problems? These focuses are not so different from the things in which they delight.

    出自-2015年12月阅读原文

    After tough workout or a day full of physical activity, it's common to find your muscles aching, but where do these pains come from?

    2019年12月四级真题(第一套)听力 Section C

    Fantasy proneness could be considered a tendency to imagine and daydream,whereas absorption is the tendency to allow your mind to become absorbed in an activity – to pay complete attention to the sensations and the experiences.

    2017年6月四级真题(第一套)阅读 Section B

    In a review of 14 studies that looked at physical activity and academic performance, investigators found that the more children moved, the better their grades were in school, particularly in the basic subjects of math, English and reading.

    2016年6月四级真题(第三套)阅读 Section A

    Instead of trying to get children to work hard, why not focus on getting them to take pleasure in meaningful, productive activity, like making things, working with others, exploring ideas, and solving problems?

    2015年12月四级真题(第一套)阅读 Section B

    Physical activity can improve blood flow to the brain, fueling memory, attention and creativity, which are essential to learning.

    2016年6月四级真题(第三套)阅读 Section A

    Physical activity does the body good, and there's growing evidence that it helps the brain too.

    2016年6月四级真题(第三套)阅读 Section A

    Seventy-four percent of the women said the activity lessened their fears and kept them from thinking about their problem.

    2017年12月四级真题(第三套)阅读 Section B

    The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains.

    2017年12月四级真题(第一套)阅读 Section C

    Though Chasin says the focus of the work is on the activity of writing, rather than the text that ends up getting written, some of the work that comes out of the sessions has stuck with her.

    2019年6月四级真题(第三套)阅读 Section C

    When muscles perform an activity they aren't regularly expose to, the tiny fibers that are inside them are being torn apart.

    2019年12月四级真题(第一套)听力 Section C

    Will parents be damaging children if they have one fewer organized activity? No, I really doubt it.

    出自-2017年6月阅读原文

    They try to develop their skills through close supervision and organized activities, and teach children to question authority figures and navigate elite institutions.

    出自-2017年6月阅读原文

    Schools or teachers who sign up for the National Math Club receive a kit full of activities and resources, but there's no special teacher training and no competition attached.

    出自-2017年6月阅读原文

    Ms.Lareau doesn't believe participating in fewer after-class activities will negatively affect children's development.

    出自-2017年6月阅读原文

    In the Pew survey, middle-class families earning between $30,000 and $75,000 a year fell right between working-class and high-earning parents on issues like the quality of their neighborhood for raising children, participation in extracurricular activities and involvement in their children's education.

    出自-2017年6月阅读原文

    Extracurricular activities reflect the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.

    出自-2017年6月阅读原文

    If our economies are to flourish, if global poverty is to be eliminated and if the well-being of the world's people enhanced—not just in this generation but in succeeding generations—we must make sure we take care of the natural environment and resources on which our economic activity depends.

    出自-2016年6月阅读原文

    Scholars warn that Antarctica's political drift could blur the distinction between military and civilian activities long before the continent's treaties come up for renegotiation, especially in parts of Antarctica that are ideal for intercepting ( ' , 拦截) signals from satellites or retasking satellite systems, potentially enhancing global electronic intelligence operations.

    出自-2016年12月阅读原文

    More than a century has passed since explorers raced to plant their flags at the bottom of the world, and for decades to come this continent is supposed to be protected as a scientific preserve, shielded from intrusions like military activities and mining.

    出自-2016年12月阅读原文

    And they neglected other healthy activities.

    出自-2016年12月阅读原文

    According to Chinese officials, their activities in Antarctica lay greater emphasis on scientific research.

    出自-2016年12月阅读原文

    They prioritize non-academic activities.

    出自-2015年12月阅读原文

    The boring classroom activities.

    出自-2015年12月阅读原文

    Nick Perks, project director for Climate Solidarity, believes this sort of activity is where the future of environmental action lies.

    出自-2015年12月阅读原文

    Laura Hamilton, the author of a study on parents who pay for college, will argue in a forthcoming book that college administrations arc overly concerned with the social and athletic activities of their students.

    出自-2015年12月阅读原文

    Design more interactive classroom activities.

    出自-2015年12月阅读原文

    But the priorities of many undergraduates are with extracurricular activities, playing sports, and partying and socializing.

    出自-2015年12月阅读原文

    You can imagine similar kinds of interactive activities along historical lines," like following the Freedom Trail in Boston, Professor Dede said.

    出自-2013年6月阅读原文

    More activities to fill in their leisure time.

    出自-2012年12月阅读原文

    Over the past two years, the figures on imports and exports seem not to signal a double-dip recession –?a renewed decline in the broad level of economic activity in the United States?–?but an economic expansion.

    出自-2011年12月阅读原文

    The most recent comparative data on the performance of universities and research institutions in Australia, Canada, USA and UK shows that, from a relatively weak starting position, the UK now leads on many indicators of commercialisation activity

    出自-2011年12月阅读原文

    It indicates that economic activities in the U.S. have increased.

    出自-2011年12月阅读原文

    They encounter boys all the time socially out of school, and through debating societies and things like that, some school activities as well.

    出自-2013年12月听力原文

    If in these activities the physical features of the planet are damaged, if the environment is made inhospitable for a multitude of living species,then so be it

    出自-2013年12月听力原文

    They make an active part in more extracurricular activities.

    出自-2013年12月听力原文

    When you reach your top height, do light activities rather than sleep too much.

    出自-2012年12月听力原文

    The interracial roommates spent less time together, and had fewer joint activities than the white pairs.

    出自-2012年6月听力原文

    They started doing similar activities

    出自-2012年6月听力原文

    A lot of the government advertising has been about individual responsibility, but actually understanding that drinking is very much about the social activity and finding ways to help young people get home safely and not end up in hospital is one of the th

    2017年6月六级真题(第二套)听力 Section C

    After the first pair of tasks was completed, one group of participants was assigned an undemanding activity intended to cause their minds to wander.

    2019年12月六级真题(第一套)听力 Section B

    At the crack of dawn, he would run up the slopes with his skis on, an unbelievably back-breaking activity.

    2019年6月六级真题(第一套)听力 Section B

    Because of their smaller size, most keep hours that allow people to enjoy themselves, then have some quiet after midnight, as opposed to large major cities like New York, where the buzz of activity is ongoing.

    2017年12月六级真题(第一套)阅读 Section C

    But others opted to lie, and they showed increased activity in their frontal parietal (颅腔壁的) control network, which is involved in difficult or complex thinking.

    2019年12月六级真题(第一套)阅读 Section C

    But thinking about or remembering descriptions in terms of their social meaning activated the dorsomedial prefrontal cortex—part of the brain's social network—even as traditional memory regions registered low levels of activity.

    2018年6月六级真题(第二套)阅读 Section B

    For example, in the case of young people's drinking, one of the things that I've identified is that drinking for people, say, between the ages of 18 and 24, is all about the social activity.

    2017年6月六级真题(第二套)听力 Section C

    Grazing herds stimulate microbial activity in the soil, helping to capture water and separate carbon.

    2019年12月六级真题(第三套)阅读 Section B

    He points to a classic 2004 study in which psychologists at Dartmouth College and Harvard University used functional MRI to track brain activity in 17 young men as they listened to descriptions of people while concentrating on either socially relevant cue

    2018年6月六级真题(第二套)阅读 Section B

    In a 2011 study, Steinberg and his colleagues turned to functional MRI to investigate how the presence of peers affects the activity in the adolescent brain.

    2018年6月六级真题(第二套)阅读 Section B

    nick Perks, project director for Climate Solidarity, believes this sort of activity is where the future of environmental action lies.

    2015年12月六级真题(第二套)阅读 Section B

    Researchers have already begun to use smartphones in social scientific research, either to query people regularly as they engage in their normal lives or to record activity using the device's built-in sensors.

    2018年12月六级真题(第一套)阅读 Section C

    Sadly, the data also showed face-to-face socializing and sports activity had declined over the period covered by the survey.

    2019年12月六级真题(第一套)阅读 Section B

    So, while there may be insights to be gained from matching behavior to brain activity, those insights will I not necessarily lead to justice in a court of law.

    2018年12月六级真题(第一套)听力 Section C

    The brains of teenagers, but not adults, showed greater activity in two regions associated with rewards when they were being observed by same-age peers than when alone.

    2018年6月六级真题(第二套)阅读 Section B

    The researchers conclude that electronic communication was the only adolescent activity that increased at the same time psychological well-being declined.

    2019年12月六级真题(第一套)阅读 Section B

    They should also be sceptical of the growing tendency to try to reduce all human traits and actions to the level of brain activity.

    2018年12月六级真题(第一套)听力 Section C

    When people uttered a falsehood, the scientists noticed a burst of activity in their amygdala.

    2019年12月六级真题(第一套)阅读 Section C

    You love the activity; it's great fun.

    2016年6月六级真题(第一套)阅读 Section A

    You understand the health?benefits that the activity can bring.

    2016年6月六级真题(第一套)阅读 Section A

    A study shows the students who are engaged in after-school activities are happier than those who are not.

    2019年高考英语天津卷 单项填空 原文

    And unplanned human activities have proved the idea of top-down control by top predators to be true.

    2019年高考英语天津卷 阅读理解 阅读C 原文

    As a general rule, all forms of activity lead to boredom when they are performed on a routine basis.

    2014年高考英语全国卷1 完形填空 原文

    Ask about today's activities at the great hall information desk.

    2018年高考英语江苏卷 阅读理解 阅读A 原文

    Buxton open house & pavilion arts centre is special because it offers artistic and cultural activities.

    2019年高考英语江苏卷 阅读理解 阅读A 题设

    Childhood activities help a child develop responsibility, independence, confidence and competence - the underpinnings of emotional health.

    2016年高考英语天津卷 阅读理解 阅读C 原文

    Deliberate practice activities require effort, produce no immediate rewards, and are motivated by the goal of improving performance rather than the goal of enjoyment.

    2015年高考英语上海卷 阅读理解 阅读表达 原文

    Don't forget to stop by pacific science center's store while you are here to pick up a wonderful science activity or remember your visit.

    2017年高考英语全国卷1 阅读理解 阅读A 原文

    First, it's the dead line for after class activity application.

    2016年高考英语上海卷 听力 原文

    For busy librarians and educators, finding instructions for projects, activities, sports, and games that children and teens will find interesting is a constant challenge, this guide is a time-saving, one-stop....

    2016年高考英语浙江卷(6月) 阅读理解 阅读B 原文

    Gardening is another great activity for helping kids develop this skill.

    2014年高考英语全国卷1 阅读理解 七选五 选项

    I told him about the many activities in which I was involved.

    2016年高考英语江苏卷 完形填空 原文

    I was able to try new activities and test my ability.

    2015年高考英语湖南卷 阅读表达 原文

    Ideally, the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown.

    2019年高考英语天津卷 阅读理解 阅读C 原文

    If children often participate in deliberate play or deliberate practice activities, they are more likely to participate in sports during adulthood.

    2015年高考英语上海卷 阅读理解 阅读表达 题设

    If you desire physical activities, you can choose activities from swimming to horse riding.

    2019年高考英语江苏卷 阅读理解 阅读A 原文

    In deliberate play activities, what do children do to maximize enjoyment?

    2015年高考英语上海卷 阅读理解 阅读表达 题设

    In the more than five years since Hannah began her activities, she has received a lot of praises.

    2017年高考英语北京卷 完形填空 原文

    Industrial activities help keep food webs stable.

    2019年高考英语天津卷 阅读理解 阅读C 选项

    It was a popular activity for couples to leisurely walk through town to view the temporary works of chilly art.

    2015年高考英语上海卷 阅读理解 阅读A 原文

    It's very likely that you'll want to have volunteers to help with the organization's activities.

    2015年高考英语江苏卷 阅读理解 阅读C 原文

    No matter what you like to do, there is a way to get involved in various activities on earth day.

    2019年高考英语北京卷 语法填空 原文

    Not until recently did they encourage the development of tourist-related activities in the rural areas.

    2016年高考英语江苏卷 单项填空 原文

    Now that you know why you want to wake up, consider re-arranging your morning activities.

    2017年高考英语全国卷3 阅读理解 七选五 原文

    Now, I'll talk about some of the activities for this term.

    2015年高考英语北京卷 听力 原文

    Now, the changes in after-school activities this week.

    2016年高考英语北京卷 听力 原文

    On the other hand, Ericsson(1993) suggests that the most effective learning occurs through involvement in highly structured activities defined as deliberate practice.

    2015年高考英语上海卷 阅读理解 阅读表达 原文

    People must be sensitive to this possibility when they make volunteer activities a must.

    2015年高考英语江苏卷 阅读理解 阅读C 原文

    Reading can be a social activity.

    2016年高考英语全国卷2 阅读理解 阅读C 原文

    She says these activities at bedtime can get kids all excited and make it hard for them to calm down and sleep.

    2017年高考英语浙江卷(6月) 阅读理解 阅读B 原文

    So they have a "god's eye view" of activities in their own markets and beyond.

    2017年高考英语江苏卷 阅读理解 阅读C 原文

    Some of us enjoy activities that would surprise and scare the rest of us.

    2016年高考英语北京卷 阅读理解 阅读E 原文

    Some of us were confident and eager take part in the class activity, others were nervous and anxious.

    2018年高考英语全国卷3 语法填空 原文

    Students should read the list with their parents/careers, and select two activities they.

    2018年高考英语全国卷2 阅读理解 阅读A 原文

    Such activities fill the spaces that used to be dead time such as waiting for somebody to arrive for a lunch meeting.

    2016年高考英语江苏卷 阅读理解 阅读D 原文

    The most obvious thing is that there is much more activity in the streets than in a typical US city.

    2017年高考英语浙江卷(11月) 听力 原文

    These activities are regulated by flexible rules adapted from standardized sport rules and are set up by the children or by an involved adult.

    2015年高考英语上海卷 阅读理解 阅读表达 原文

    This makes a fun activity for a children's party; they love feeding the fruit and frozen bananas into the top of the machine and watching the ice cream come out below.

    2018年高考英语全国卷2 阅读理解 阅读B 原文

    Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed.

    2016年高考英语天津卷 阅读理解 阅读C 原文

    Uncontrolled human activities greatly upset ecosystems.

    2019年高考英语天津卷 阅读理解 阅读C 选项

    Under vaillant, the researchers compared the men's mental-health scores with their boyhood-activity scores with their boyhood-activity scores.

    2016年高考英语天津卷 阅读理解 阅读C 原文

    Ways of arts' promoting our economy arts activity demands an joint/collective effort.

    2018年高考英语江苏卷 阅读理解 填空题 原文

    When coaches develop activities for youth practices and when sport organizations design youth-sport programs, they must consider the implication of deliberate play and deliberate practice.

    2015年高考英语上海卷 阅读理解 阅读表达 原文

    When involved in deliberate play activities, children are less concerned with the outcome of their behavior whether they win or lose than with the behavior having fun.

    2015年高考英语上海卷 阅读理解 阅读表达 原文

    You will be able to take part in a number of activities from canoeing to wild camping on Dartmoor.

    2018年高考英语全国卷2 阅读理解 阅读A 原文

    Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions.

    出自-2012年考研阅读原文

    There is one and only one social responsibility of business,” wrote Milton Friedman, a Nobel prize-winning economist, “That is, to use its resources and engage in activities designed to increase its profits.”

    出自-2016年考研阅读原文

    So, what Kennedy was referring to was that while GDP has been the most common method for measuring the economic activity of nations , as a measure , it is no longer enough.

    出自-2017年考研阅读原文

    To realize how great was the dramatic activity, we must remember further that hosts of plays have been lost, and that probably there is no author of note whose entire work has survived.

    出自-2018年考研翻译原文

    Shakespeare’s life time was coincident with a period of extraordinary activity and achievement in the drama.

    出自-2018年考研翻译原文

    But in late September 2009, officials reported there was significant flu activity in almost every state and that virtually all the samples tested are the new swine flu, also known as A H1N1, not seasonal flu.

    2010年考研真题(英语二)完形填空 Section Ⅰ

    In contrast, only five of the 30 children paired with the "unreliable" tester participated in a follow-up activity.

    2018年考研真题(英语一)完形填空 Section Ⅰ

    In people who score high in a test of neuroticism, a personality dimension associated with self-consciousness and anxiety, eye contact triggered more activity associated with avoidance, according to the finnish researcher Jari hietanen and colleagues.

    2020年考研真题(英语一)阅读理解 Section Ⅱ

    So they compared U.S. cities' average happiness measured by Gallup Polling with the investment activity of publicly traded firms in those areas.

    2016年考研真题(英语二)完形填空 Section Ⅰ

    So what Kennedy was referring to was that while GDP has been the most common method for measuring the economic activity of nations, as a measure, it is no longer enough.

    2017年考研真题(英语一)阅读理解 Section Ⅱ

    That kind of activity makes it less likely that the court's decisions will be accepted as impartial judgments.

    2012年考研真题(英语一)完形填空 Section Ⅰ

  • 英英释义

    Noun

    • 1. any specific activity;

      "they avoided all recreational activity"

    • 2. the state of being active;

      "his sphere of activity"

      "he is out of action"

    • 3. an organic process that takes place in the body;

      "respiratory activity"

    • 4. (chemistry) the capacity of a substance to take part in a chemical reaction;

      "catalytic activity"

    • 5. a process existing in or produced by nature (rather than by the intent of human beings);

      "the action of natural forces"

      "volcanic activity"

    • 6. the trait of being active; moving or acting rapidly and energetically;

      "the level of activity declines with age"

  • 词根词缀

    词根: act

    =to do/to drive,表示"行动,活动,做"

    • adj.

      acting 代理的

      act行动,活动,做+ing……的→adj.代理的

      active 积极的, 能起作用的, 现行的

      act行动,活动,做+ive……的→积极的

      actual 实际的, 真实的, 现行的, 目前的

      act做+ual=al……的→做了的→实际的, 真实的

      exacting 苛求的

      exact[v.强求;精确的]+ing……的→adj.苛求的

      reactive 反应的, 起反作用的, 反动的, 电抗性的

      react反应;反抗+ive……的→反应的,反动的

    • n.

      act [戏]幕

      act行动,活动,做→v.行动,行为,扮演 n.[戏]幕

      action 动作, 作用, 战斗, 行动, 举动, 行为

      act活动+ion动作或状态→动作,活动

      activity 活动

      act行动,活动,做+ivity特性→活动

      inactivity 不活跃

      in不+activity活跃→n.不活跃

      reaction 反应, 反作用, 反动[力]

      react反应;反抗+ion动作或状态→n.反应, 反作用, 反动[力]

      reactor 反应堆

      react反应+or物器→n.反应堆

    • v.

      act 行动,行为,扮演

      act行动,活动,做→v.行动,行为,扮演 n.[戏]幕

      activate 使……活动,起动

      act行动,活动,做+ivate使→使……活动

      actualize 实现

      actual实际的+ize化→实际化→实现

      counteract 抵抗;抵消

      counter反+act行动,活动,做→反着动→力量对抗→抵消

      enact 实施,颁布

      en使+act行动,活动,做→使[法律]动→实施法律

      exact 强求;精确的

      ex出+act行动,活动,做→[要求]做出来→强求

      interact 相互作用

      inter相互+act行动,活动,做→相互动→相互作用

      react 反应;反抗

      re反+act行动,活动,做→反动;反应

      transact 做交易;办理

      trans横+act行动,活动,做→横向动→互相贸易或交易

  • 同义词

    n.活力;活动

    movementactionenergy

    其他释义

    playinactivityenergyoccupationmotionmovementworkoperationmatteraction

  • 反义词

    n.活力;活动

    inactivity

  • 行业词典

    • 体育

      活动???活跃???敏捷???活性???积极性进攻???

    • 冶金学

      活度???

    • 化学

      活度???[放射性]活度???

    • 化工

      活度???活性???

    • 医学

      活动,活动度,活力,效能:处于活动或活性状态???具有产生某种效能的作用???具有某种功能或作用的程度???反映非理想溶液中溶质有效浓度的热力学数量,如以活力代替浓度,则用于平衡常数、电极电势、渗透压、沸点升高、冰点降低以及挥发性溶质的蒸气压等公式,都可由只对稀溶液适用的近似值转变为适用于一切浓度的严密公式。活力等于浓度与活力系数(测定非理想溶液偏移度的无因次数量)的乘积???符号为α???放射活性:即放射性物质在单位时间中的裂变数,以居理或贝克勒耳计???符号A???旋光度,旋光性???

    • 心理学

      活动???

    • 机械

      活度???在标准状态下,溶液中组分的热力学浓度,即校正真实溶液与理想溶液性质的偏差。???

    • 物理学

      活度???活性???

    • 电工

      活度???

    • 药学

      活动[度]???

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