It can aim two 12-kilogram cameras and high-intensity lights at a speed of 60 degrees per second.

它可以装备2个12公斤重的摄像机和强光灯，且该定位器转速能达到60度每秒。

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Occasionally, you'll find you need to cancel out units, because, of course, you're always doing unit analysis as you solve your problems, and sometimes you'll need to convert joules to kilogram meters square per second squared.

偶然地，你会发现需要消除单位，因为在解题时,经常要做单位分析，所以有时候需要把,焦耳换做,一千克乘以米的平方除以秒的平方。

麻省理工公开课 - 化学原理课程节选

A joule is a kilogram meter squared per second squared.

一个焦耳等于,一千克乘以米的平方除以秒的平方。

麻省理工公开课 - 化学原理课程节选

So, the way to measure force is in kilogram meters per second squared.

所以,力的单位是千克米每秒平方

耶鲁公开课 - 基础物理课程节选