一氧化氮

Even though CFCs and nitrous oxide both destroy ozone, they actually work against each other.

即使碳氟化合物和一氧化二氮都会破坏臭氧层，他们彼此间还相互作用。

The scientists say that nitrous oxide, not CFCs, are now the biggest threat to the ozone layer.

这位科学家还说，现在，一氧化二氮才是臭氧层最大的威胁，而不是碳氟化合物。

So less CFCs means that each remaining molecule of nitrous oxide will destroy more ozone.

所以如果碳氟化合物少了，那么剩余下来的一氧化二氮分子会破坏更多的臭氧。

In the chair at the dentist's office, nitrous oxide is better known as "laughing gas"—it's used to knock out patients during uncomfortable procedures.

在牙医办公室的椅子上，一氧化二氮气体被认为是"笑气"——在令人不舒服的过程中，它被用来麻醉患者。

Nitrous oxide is commonly known as laughing gas.

一氧化二氮通常被称作笑气。

Nitrous oxide pollution of the atmosphere occurs usually from the nitration of cellulose and other organic materials.

大气中的一氧化二氮污染通常由纤维和其他有机物质的硝化作用产生。

To understand why nitrous oxide is dangerous, it's important to understand what else is in the stratosphere.

为了了解为什么一氧化二氮如此危险，我们很有必要知道平流层中还有哪些物质。

If humans can limit the production of nitrous oxide, more ozone may be spared.

如果人们能够减少一氧化二氮气体的排放，那么更多的臭氧将得以保全。

Livestock farming accounts for 9 percent of all global CO2 emissions from human activity, and 65 percent of the nitrous oxide .

所有的9人类活动全球二氧化碳排放量百分之占畜牧业生产，和65的一氧化二氮的百分之。

Foams are slightly more dense than airs and they are generally made with a similar liquid, but foamed up in a cream whipping device charged with nitrous oxide.

泡沫比空气的密度要大，而且它们通常是由一种相似的液体组成，但是在充满一氧化二氮的冰淇淋装置里会起泡沫。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。