Meaning they release ethylene gas as they mature—and the gas in turn accelerates ripening.

这其中奥妙在于随着这些成熟会释放乙烯，而乙烯反过来会加速成熟。

Because CFCs are also powerful greenhouse gases.

因为氟氯碳化物是强温室气。

I injected the stable isotope carbon-13 carbon dioxide gas.

我往他们袋子中注射了 含有稳定性同位素碳13二氧化碳。

And these are more potent greenhouse gases than CO2.

这些是比二氧化碳更强温室气。

To counteract this oxygen would have to be diluted with non reactive gas.

为了制造这种情况，氧气中空气比率需要利用惰性气来降低。

The train was hauling liquified natural gas and crude oil.

火车载有液化天然气和原油。

Manufacturing flat screens adds greenhouse gases to the atmosphere.

生产平板电视会向气中排放温室气。

This will require nations to reduce their greenhouse gases, like carbon dioxide.

这将要求各减少二氧化碳等温室气排放。

Then more water vapor goes into the air, forming yet another potent greenhouse gas.

然后越来越多水蒸气进入空气中 这是另一种强温室气。

But there were some scuffles with police who fired tear gas.

但是有些人与发射催泪瓦斯警察发生了冲突。

Officials using tear gas to break up the crowd.

官员们使用催泪瓦斯驱散人群。

China and the U.S. are the biggest contributors to the world's global greenhouse gases.

中和美是球两个最温室气排放。

Would you please fill some gas for me?

能帮我加些油吗？

" To turn off the gas in my room" !

" 忘了把我屋里煤气关上了。"

Can you turn the gas off for me?

可以帮我关掉煤气吗？

It is heated until it becomes a gas.

然后再加热使之变为气。

Not yet. The chemical factory produces terrible gas.

还没有。那家化学工厂产生气太糟糕了。

Nature is gobbling greenhouse gas every day.

自然每天都在量吸收温室气。

As gravity pulls a star's gas inward, pressure increases and pushes the matter back outward.

当重力将恒星气向内拉时，压力增加并将物质推向外部。

Industry, wildfires and cars can release polluting greenhouse gases, which trap heat in our atmosphere.

工业、野火和汽车会释放出造成污染温室气，温室气会在气中吸收并锁住热量。