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。

youdao

The full-length songs stream at something less than CD quality (128 kilobits per SEC.), but it's good enough on a computer.

虽然一些全长歌曲的音质没CD的好(一般是128千比特每秒)，但这对电脑播放来说已经足够了。

youdao

And its speed is only one kilometer per sec It's much further out. If it's much further out, R the speed will be much lower.

速度只有一千米每秒,在很外面，如果它是在很外面，就大很多，R，is，much，larger，，and，so，you，see,速度会更慢。

youdao

Receiving a check from my own father might be illegal per the SEC.

FORBES: Connect

"There is a lot of fraud here per capita, " says local sec boss Kenneth Israel.

FORBES: Fraud per capita

Best Buy reports Total Number of Stores, Revenue per Store, and Total Square Footage in its annual SEC filings.

FORBES: Best Buy Worth At Least $45 If Sales Per Square Foot Swell