That's the first derivative of the position versus time.

它就是位置，对时间的一阶导数。

youdao

And so we're going to take the derivative versus time of this equation.

我们要求这个，方程的时间导数。

youdao

And so I can substitute that in there, and so I get that the power is the derivative of this versus time.

所以我可以代入这里，得到那个功率，是相对时间的衍生物。

youdao

This is not an x versus time plot or y versus time.

这不是 x 坐标关于时间的图像,或 y 坐标关于时间图像

耶鲁公开课 - 基础物理课程节选

Last time, we argued about the case of Queen versus Dudley and Stevens, the lifeboat case, the case of cannibalism at sea.

上节课，我们讨论了,女王诉达德利和斯蒂芬斯案，即救生艇的案例，海上食人惨案。

耶鲁公开课 - 公正课程节选

So we know we always want to have our systems in as low an energy as possible, so it makes sense that a bond would happen any time we got a lower energy when we combine two atoms, versus when we keep them separate.

我们知道我们总是希望使我们的系统,处于能量尽可能低的状态，因此就应该有化学键产生,一旦我们合并两个原子之后体系的能量变得更低，相较于分开时。

麻省理工公开课 - 化学原理课程节选

It helps booksellers define titles that are space-travel science fiction versus time-travel science fiction, cyberpunk versus steampunk, for instance.

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The employment landscape is shifting and it does point to a more flexible workforce, that is, contractors, versus full time employees.

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Using Nectar, consumers get 10 times the run-time versus traditional chargers and will never again worry about running out of power.

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