这是一个很简单的问题，通过观察重量是多少以及它下降了多远，来确定桨轮做了多少功。

It's a trivial matter, by looking at what is the weight and how far does it drop, to say OK, how much work is done by the paddlewheel.

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为了帮你起步，我们请了5位成功作家来揭示一些诀窍。

To get you started, we have asked five successful writers to reveal some of the tricks of the trade.

《柯林斯英汉双解大词典》

瑜伽是一种老少皆宜的静态有氧运动。你可以选择独自练瑜伽功，也可以和朋友一起来练，甚至还可以同一组人一起做。

Yoga is one suitable static movement with oxygen for all the old and young people. You can do Yoga alone, with a friend, or even in group games.

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The piston has a cross-sectional area, a, and the force pressure is force per volume area.

我们以活塞系统为例，来说明膨胀功。

麻省理工公开课 - 热力学与动力学课程节选

Sometimes we might just directly tell you that's probably the easiest scenario, because when we think about work functions those are usually reported in energy.

有时候我们可能只是直接告诉你,那可能是最简单的情况，因为当我们考虑功函数时,它们经常用能量来记录。

麻省理工公开课 - 化学原理课程节选

After all, we're taking the output work that we get from the right, and using it all to drive the left.

毕竟，我们利用,右边产生的功，来驱动左边的热机。

麻省理工公开课 - 热力学与动力学课程节选