该模型的连续性证明的表达式“周期性波动”和“商业周期”，虽然动作既不恒定的持续时间也不恒定的长度。

The continuous character of this model justifies the expressions' cyclical fluctuations' and 'business cycle' although the movements have neither constant duration nor constant length.

youdao

所有这些各种各样的损耗，尽管它们数量很大，却一点也不违反能量守恒定律。

All these various losses great as they are do not in any way contradict the law of conservation of energy.

youdao

机器中的各种损耗，尽管很大，但这与能量守恒定律丝毫也不矛盾。

The various losses in a machine great as they are do not in any way contradict the law of conservation of energy.

youdao

I mean maybe up the street we whisper, but here we know it. And, so here is a different kind of system where we have a constant external pressure.

或许在街上你们低声细语，但在这里不应该这样，这是另一个系统,我们有一个恒定的外压强。

麻省理工公开课 - 热力学与动力学课程节选

First, free velocity, constant velocity can be obtained for free without doing anything.

首先,速度是无偿的,恒定速度不需外力作用就能无偿获得

耶鲁公开课 - 基础物理课程节选

Is never going to be the most convenient one experimental.

试验中要保持熵恒定,是非常不方便的。

麻省理工公开课 - 热力学与动力学课程节选