画受力图是解决力学问题关键的一步。

Protracting object's free-body diagram is a course of analysising object's force from other object.

youdao

那么今天，我仅仅想继续探讨，一些统计热力学问题。

So today, I just want to continue doing some statistical thermodynamics.

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预应力法在转子动力学问题的研究中可进一步拓展。

The prestress method should be developed in the study of the rotor dynamics problems.

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And so this is really a mechanical term, if you like, and this is electrostatic or coulombic.

所以说这真算是一个力学问题，你愿意的话，也可以说它是,静电学或库仑定律方面的问题。

麻省理工公开课 - 固态化学导论课程节选

So, remember this makes sense if you just think of it as a wave and forget the particle part of it for right now, because that would be very upsetting to think about and that's not, in fact, what's going on, we're talking about quantum mechanics here.

记住如果你们把它看做是一个波,而忘记它是一个粒子时，这就是可以理解的了，因为如果把它看做,一个粒子就行不通了，实际上也不是这样的，这里我们是以量子力学的角度来考虑问题。

麻省理工公开课 - 化学原理课程节选

What does it require to be a successful mechanic, to do all the mechanics problems?

怎么才能当个成功的力学家,并能解决所有的力学问题呢

耶鲁公开课 - 基础物理课程节选