It carries up to 350,000 pounds of gas.

它携带了350,000磅气体（或燃气）。

The lecture was on cosmic gas clouds. That's funny!

那个演讲是关于宇宙气体云的。多有趣!

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

为了制造这种情况，氧气中的空气比率需要利用惰性气体来降低。

The modern city consists of monstrous edifices and of dark, narrow streets full of petrol fumes and toxic gases, torn by the noise of the taxicabs, lorries and buses, and thronged ceaselessly by great crowds.

大得吓人的高楼和阴暗狭窄的街道组成了今日现代化的城市。街道上充斥着汽油味和有毒气体，出租汽车、卡车、公共汽车的噪音刺耳难忍，络绎不绝的人群来去。

Air is a mixture, not a compound, of gases.

空气是气体的混合物，而不是化合物。

Beef is the most resource intensive food that we commonly eat. It accounts for about half of the land use and greenhouse gas emissions associated with the American diets.

肉是我们常吃的最耗费资源的食物。肉生产用地和所产生的气体约占美国饮食相关的土地利用和温室气体排放的一半。

For a start, all animals, such as cows, pigs and sheep, always gas limed methane, which is the second most common green house gas after carbon dioxide.

首先，所有动物如、、都会排出甲烷气体，它是排在二氧化碳之后的第二大常见的温室效应气体。

It requires U.S.government agencies to reduce their greenhouse gas emissions.

美国政府机构被要求减少温室气体排放。

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

然后越来越多的水蒸气进入空气中 这是另一种强大的温室气体。

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

加热这种化合物会驱除二氧化碳气体，留下氧化钙。

Manufacturing flat screens adds greenhouse gases to the atmosphere.

生产平板电视会向大气中排放温室气体。

The U.S. has been the biggest emitter of greenhouse gases in history.

美国是史上最大的温室气体排放国家。

That's where the liquid is depressurised and so it reverts to a gas. Then the oil and grease are separated out and sent to the waste system.

在那里，液体二氧化碳会被减压，然后变成气体。而那些油脂会被分离出来送到废物系统中去。

But phosphine gas is produced on earth at least by bacteria that don't need oxygen.

但是磷化氢气体在地球上至少是由不需要氧气的细菌产生的。

A carbon emission is a gas produced by the burning of carbon.

碳排放是指碳燃烧后产生的气体。

The air seemed thin, as though its combination of gases had little oxygen left.

空气似乎很稀薄，好像在混合的气体中剩下的氧气很少。

Some of the gases are natural gases.

有些气体是天然气。

Doc, didn't you say that the body was filling with gas?

博士 现在尸体里开始产生气体了是吗？

C) They cannot boost crop yields without causing greenhouse gas emissions.

C）它们无法在不造成温室气体排放的情况下提高作物产量。

Each link responds to one particular gas, by changing how the nanotubes conducts electricity.

通过改变纳米管的导电方式，每个链接都对应一种特定气体。