Any of three gaseous isomeric ethylene hydrocarbons , C 4 H 8 , used principally in making synthetic rubbers.

丁烯乙烯的三种气态同分异构体之一,C4H8, 主要用于制造合成橡胶.

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A key problem of oilfield data integration is that data cannot be exchanged among isomeric databases.

异构数据库之间不能流畅地交换数据是油田数据集成的主要瓶颈之一.

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Any of three isomeric glyceryl esters of butyric acid , naturally present in butter.

丁酸的三种同分异构甘油酯的任一种.

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Data warehouse ( DW ) can homogenize isomeric data and has a complex analysis function.

现有的基于数据库系统的水环境质量评价系统面向的对象单一,分析功能弱.

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Space isomeric molecular model is a key content in the teaching of organic chemistry.

立体异构是有机化学课的重点教学内容,在教学实践中探索出以橡皮泥为原料制作简易立体异构分子模型的方法.

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