Exclusion of air creates a vacuum in the bottle.
瓶子里的空气排除后就产生真空。
Wind is a current of air caused by a vacuum caused by hot air rising.
风是由热空气上升产生真空而引起的空气流动。
Trapped in a pocket of air, they had only 40 minutes before the tide flooded the chamber.
他们被困在有一点空气的弹丸之地，再过40分钟洪水就会淹没这间屋子了。
The north pole is warmer than the south and the circulation of air around it is less well contained.
北极比南极温暖，其周围的空气循环更为畅通。
The composition and levels of air pollution vary from place to place.
空气污染的成分和程度在各个地方都不尽相同。
There is no doubt that enough concern must be paid to the problem of air pollution.
毫无疑问，我们必须对空气污染问题有足够的重视。
These ratios register the fluctuations of air temperatures over the seasons and years.
这些比率记录了空气温度随季节和年份的波动。
To generate lift, a bird has merely to tilt its wings, adjusting the flow of air below and above them.
为了产生抬升力，鸟儿们只要倾斜翅膀，对从身体上方和下方通过的气流稍作调整。
I have learnt that the problem of air pollution is universal and that we were likely to run out of some natural resources.
我了解到空气污染问题是全球性的，而且我们可能会耗尽一些自然资源。
Perhaps struggle unfolds first, not at an economic or social level, but over the appropriation of air, essential to life itself.
也许首先展开的不是在经济或社会层面上的斗争，而是为占有对生命本身必不可少的空气而斗争。
The government should take into serious consideration the emergency and severity of air pollution and take measures to deal with it.
政府应认真考虑空气污染的紧急性和严重性，并采取措施加以处理。
They simply sense changes in their environment, as for example when the mound's wall has been damaged, altering the circulation of air.
它们只是简单地感觉到它们所处环境的变化，例如，当土堆的壁被破坏时，会改变空气的循环。
The taste, texture, and feel of food are what we tend to focus on, but most important are the slight puffs of air as we chew our food—what scientists call "retronasal smell".
食物的味道、质地和口感往往是我们关注的重点，但最重要的是我们咀嚼食物时产生的轻微的气息，科学家们称之为“鼻后气味”。
So you can imagine the reaction when a recent USA Today investigation of air quality around the nation's schools singled out those in the smugly green village of Berkeley, Calif.
最近《今日美国》对全国学校附近的空气质量进行调查，挑出了那些在加州伯克利绿色小镇沾沾自喜的学校，人们的反应可想而知。
A hovercraft rides on a cushion of air.
气垫船悬浮在气垫上行驶。
I bobbed to the surface and gasped a lungful of air.
我浮上水面，深吸了一口气。
She was screwing up her eyes against the onrush of air.
一阵风突然吹来，她眯起了眼睛。
The building provides about 25,500 sq. ft. of air-conditioned offices.
这座建筑提供大约2.55万平方英尺的空调办公室。
天空充满了空气吗？
High places are free of air pollution.
高处没有空气污染。
Every year, about 6.5 million people die because of air pollution.
每年，大约有650万人死于空气污染。
With the help of Air Classroom, students can keep learning even with schools closed.
在空中课堂的帮助下，即使学校关闭，学生也可以继续学习。
In fact, smoke and other kinds of air pollution can cause serious illnesses or make them worse.
事实上，烟雾和其他种类的空气污染会导致严重的疾病或使疾病恶化。
Perception of sweet and salty foods dropped by almost 30 percent in a simulation of air travel.
在模拟航空旅行中，人们对咸甜食物的感知能力下降了近30%。
Demanding too much of air travelers or providing too little security in return undermines public support for the process.
如果对飞机乘客的要求过于苛刻，或者相应的安全保障太少，反而会削弱民众对安检的支持。
But demanding too much of air travelers or providing too little security in return undermines public support for the process.
可是，如果对飞机乘客的要求过于苛刻，或者相应的安全保障太少，反过来就不利于民众对安检的支持。
The effects of air pollution are worst in the developing world, where in some places lost-labor income equals nearly 1% of GDP.
发展中国家受空气污染影响最为严重，在一些地区，劳动力收入损失几乎相当于国内生产总值的1%。
The association representing British airline pilots says that there is an urgent need to raise levels of air safety throughout the world.
代表英国航空公司飞行员的协会表示，现如今我们迫切需要提高全世界的航空安全水平。
The inventor Henry Bessemer discovered that directing a blast of air at melted iron in a furnace would burn out the impurities that made the iron brittle.
发明家亨利·贝塞默发现，在熔炉里对铁水直接吹一吹气，就会烧掉使铁变脆的杂质。
Connect Intake-tube with intake-tube of air filter of the rewinder, then get through entering power source.
将进气管与复卷机空气过滤器的进气管相连，然后进入电源。
应用推荐