They have to wait for clearance from air traffic control.
他们必须等待空中交通管制队下达的起降许可令。
Many a person has suffered from air pollution.
空气污染影响了很多人。
Nylon is made from air, coal and water.
尼龙是由空气、煤和水加工制成。
Can you separate oxygen from air?
你能把氧气从空气中分离出来吗？
Will you sunder nitrogen from air?
你能从空气中把氮气分离出来吗？
Nylon nis made from air, coal and water.
尼龙是由空气、煤和水加工制成。
This district is free from air pollution.
这个地方是没有空气污染的。
Keep away from air conditioner wherever you sit.
不管你坐在哪儿，注意别离空调太近。
No one from Air Canada was immediately available to comment.
加拿大航空公司方面没有人立刻发表评论。
Targets that the west had considered immune from air attack .
西方认为不会遭受空袭的目标。
We have taken measures to safeguard our city from air attack.
我们已采取措施以防遭到空袭。
Big cities, such as London and New York, suffer from air pollution.
像伦敦和纽约等大城市都遭受着空气污染之苦。
So far, aside from airlines and air travellers, the impact has been limited.
迄今，除了航空公司与乘机旅客外，火山喷发所造成的影响是有限的。
Objective: To obtain high purity medical oxygen from air by pressure swing adsorption.
目的：研究一种用变压吸附方法由空气生产高纯医用氧气的流程。
The present invention provides a technology for separating oxygen and nitrogen from air.
本发明提供一种新的从空气中获取氧气和氮气的技术。
A cold draught of air blew in from the open window.
一股寒气从敞开的窗户吹了进来。
The air is thick with acrid smoke from the fires.
空气中充满了火灾产生的刺鼻浓烟。
The first bubbles to escape from the liquid are a mixture of air and hydrogen.
从该液体中最先逸出的气泡是空气和氢的混合物。
Nowadays forests are increasingly welcome because they suck in carbon pollution from the air.
因为森林能吸走空气中的碳污染，所以现在它们变得越来越受欢迎了。
"Th' air from th' moor has done thee good already," she had said.
“荒野上的空气已经对您有好处了。”她说。
The temple was clearly visible from the air.
从空中看去，那座庙宇清晰可辨。
My first view of the island from the air took my breath away.
我第一次从空中看到这个岛时，叹赏不已。
Their tanks would be vulnerable to attack from the air.
他们的坦克将易受空袭。
We don't just pull them from thin air, do we?
我们不是凭空捏造出来的，对吧？
During the great war London was attacked from the air.
在大战期间伦敦受到来自空中的袭击。
There can be no real defence against attacks from the air.
对来自空中的攻击是无法设防的。
There can be no real defence against attacks from the air.
对来自空中的攻击是无法设防的。
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