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

What they all have in common is that the shape of the waveform (level versus time) is the main feature of interest.

用户对其感兴趣的是他们的共同点，即波形形状(电平随时间的波形)。

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.

FORBES: Charting the Sexiness of Fifty Shades of Grey

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.

ENGADGET: Lilliputian debuts Nectar Mobile Power, promises two weeks of battery life per cell