Ronald Noble is Interpol's Secretary General. "We agreed that we would create here in Cameroon, at our regional bureau, the first ever unit dedicated to tracing assets that were taken from a country in a corrupt fashion,"

VOA: standard.2009.11.09

We divide that by the mass, so 0.12 kilograms, that's the mass of a regulation baseball for the major leagues, and the velocity of the baseball is 42 meters per second. So, we can cross out our units doing our unit analysis.

我们用质量来除它，质量为0，12千克，这是大多数联赛规定的棒球质量,棒球的速度为42米每秒,所以，我们可以消去单位,来做单位分析。

麻省理工公开课 - 化学原理课程节选

It's always good when we're looking for a wavelength that our answer is in a unit of length, that's a good sign already.

当我们计算波长时,如果答案是一个长度单位，那就是一个好的迹象。

麻省理工公开课 - 化学原理课程节选