Well, if you get the combustion chamber hot enough, in point of fact, there are some reactions between nitrogen and the oxygen.
如果燃烧室的温度足够高的话,实际上在氮气和氧气之间,会发生一些反应。
It feels good. It's not too hot today as well.
感觉真好。今天也不热。
Well, they'll want to take baths and that'll use up hot water," They said.
他们要洗澡,就会用掉很多热水,她们说。
the zeroth law, which is the common-sense law, which says that if you take a hot object next to a cold object, heat will flow from the hot to the cold in a way that is well defined, and it allows you to define temperature.
上节课我们讨论了,热力学第零定律,这一定律源自常识:如果把一个热的物体,与一个冷的物体挨在一起,热量就会以确定的方式。
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