例如，许多操作系统以几十毫秒作为时间度量的单位。

For example, many operating systems measure time in units of tens of milliseconds.

youdao

人类眼睛所观测到的光是以流明小时这种单位度量的。

The light perceived by the human eye is measured in units called lumen-hours.

youdao

这个流量度量了，单位时间内通过s的烟雾的多少。

So, this flux measures how much smoke is passing through s per unit time.

youdao