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

其中的奥妙在于随着果实的成熟会释放乙烯，而乙烯反过来会加速果实的成熟。

Because CFCs are also powerful greenhouse gases.

因为氟氯碳化物强大的温室体。

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

我往他们的袋子中注射了 含有稳定性同位素碳13的二氧化碳。

And these are more potent greenhouse gases than CO2.

二氧化碳更强的温室体。

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

为了制造况，氧中的空率需要利用惰性体来降低。

The train was hauling liquified natural gas and crude oil.

火车载有液化天然和原油。

Manufacturing flat screens adds greenhouse gases to the atmosphere.

生产平板电视会向大中排放温室体。

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

将要求各国减少二氧化碳等温室体的排放。

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

然后越来越多的水蒸进入空中 另一强大的温室体。

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

但有人与发射催泪瓦斯的警察发生了冲突。

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.

中国和美国全球两个最大的温室体排放国。

Would you please fill some gas for me?

能帮我加油吗？

" To turn off the gas in my room" !

" 忘了把我屋里的煤关上了。"

Can you turn the gas off for me?

可以帮我关掉煤吗？

It is heated until it becomes a gas.

然后再加热使之变为体。

Not yet. The chemical factory produces terrible gas.

还没有。那家化学工厂产生的体太糟糕了。

Nature is gobbling greenhouse gas every day.

大自然每天都在大量吸收温室体。

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

当重力将恒星的体向内拉时，压力增加并将物质推向外部。

Heating this chemical compound drives off carbon dioxide gas leaving calcium oxide.

加热化合物会驱除二氧化碳体，留下氧化钙。