So how much air conditioning can reduce the number of it?

那么空调究竟能降低多少温度呢？

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If a man is left without any more information he asks: 'How much air am I to let in?

既使一个在这方面一无所知的人他想知道：‘我应该让多少空气进去？’

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By sending satellites round the earth at different heights, we can find out how much air there is at each height.

我们把卫星送入不同高度的轨道饶地球运行，就能测出地球上空不同高度处空气的含量。

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"It is going to be a big anti-incumbent year, and a big anti-Washington year, and what is still left a little bit up in the air after last night is how much that anti-incumbent wave, how disproportionately that anti-incumbent wave, will wash over the Democrats."

VOA: standard.2010.05.19

Since 1988, the Environmental Protection Agency has tracked chemicals at plants around the U.S. You can look up everything from how much carbon dioxide DuPont releases into the air, to how much lead a group of potters uses in their ceramics studio each year.

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But this big of a drop is surprising considering how little competition was on the air and how much pre-season momentum NBC has had lately.

CNN: 'The Office,' 'Parks and Rec' return to lower ratings

Other than a precious few secrets, like how fast a head plunges into an air bag or how much force a taut seat belt exerts on an abdomen, the dummies reveal little.

FORBES: Smart Dummies