At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.
在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动.
辞典例句
Add newly everyday register an user 20 thousand person, average per sec. has 3 comments.
每天新增注册用户2万人, 平均每秒钟就有3条评论.
互联网
Average per sec. adds an user newly.
平均每秒钟就新增一名用户.
互联网