He observed when people were machining cannon barrels, a lot of heat was generated, and there was a lot of work done.

他发现人们在制作炮管时，会产生大量的热，同时有大量的做功。

youdao

You can take heat energy and convert it to work energy and vice versa, and it doesn't say anything about that you have to waste heat if you're going to transform heat into work.

你可以把热能便成功，也可以反过来，但它对于如果你要把热变成功，就必须浪费热量这件事只字未提，它只是说这是能量。

youdao

So here are expressions for work and heat.

这是功和热量的表达式。

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The causes of heat stress include wearing heavy clothing, physical work or exercise, hot weather and high humidity.

VOA: special.2011.08.09

But it's a good story, Joule decided that there must be a direct relationship between work and heat.

所以说，这只是一个不错的故事而已，焦耳认为功和热之间,一定具有某种直接的联系。

麻省理工公开课 - 热力学与动力学课程节选

And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

In the north, heat and cold work together to destroy real estate and hurt firefighters.

WSJ: Chicago Blaze Shows the Misery and Peril of Fire-Fighting in Cold Climes

Conventional cooling techniques such as fans and heat sinks do not work as well with the 3D technology, particularly as heat has to be drawn away from between the individual chips.

BBC: IBM aims to cool chips with water

Her death raises questions about how effectively California's heat-safety regulations work in the fields.

NPR: Teen Farmworker's Heat Death Sparks Outcry