air是什么意思？

Cairo is known for its overcrowded roads, irregular driving practices and shaky old vehicles, but also for its air pollution.

Solar homes produce the most power on the hot sunny afternoons when everyone rushes home to turn up the air conditioner.

Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that expand over time and let in more outside air.

Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up.

What do we know about the black boxes from Air France Flight

It's good to get back to some fresh air.

What controls remain for the users will be audio-based, so, for example, you'll just have to say "a bit warmer", and the air conditioning will adjust automatically

In the deaf culture of North America, many listeners show applause not by clapping their hands but by waving them in the air.

Whether she can travel by air.

This doesn't mean to put on airs and say "do you know who I am?

"One of the risk factors for premature deaths is the air we breathe, over which individuals have little control," he said.

air pollution costs the global economy more than $5 trillion annually in welfare costs, with the most serious damage occurring in the developing world.

Although in-flight infections thrive in dry environments like airplanes, your risk of getting sick from an airplane is actually low because of the air filters used.

Around 9 in 10 people in low- and middle-income countries live in places where they regularly experience dangerous levels of outdoor air pollution.

If you're planning on being one of them soon, you might not be looking forward to the unpleasant feeling air travel often leaves you with.

It has been trying out monitoring stations that are intended to yield minute-to-minute maps of outdoor air pollution.

millions die early from air pollution each year.

One vision of the perfect city of the future: a place that offers easy access to air travel.

Perception of sweet and salty foods dropped by almost individuals percent in a simulation of air travel.

the 20th century a highway, car, truck century—and the 21st century will increasingly be an aviation century, as the globe becomes increasingly connected by air, " Kasarda says.

The air you breathe in a plane dries out your mouth and nose, which can affect your sense of taste.

The airlander 10 spent nearly 2 hours in the air, having taken off from Cardington airfield in Bedfordshire.

The effects of air pollution are worst in the developing world, where in some places lost-labor income equals-nearly 1% of GDP.

The figures include a number of costs associated with air pollution.

The report includes both indoor and outdoor air pollution.

Then again, the air of accountability that the camera generates can also work in contractors' favor.

Therefore, these new findings should help airplane passengers to feel less vulnerable to catching respiratory infections while traveling by air.

Citizens of wealthy nations demand national parks, clean rivers, clean air and poisonfree food.

As if that were not enough, a Brazilian C-130 Hercules military transport plane has remained stranded near the runway of Chile's air base here since it crash-landed in 2014.

In the meantime, the amount of CO2 in the air is rapidly approaching the limits proposed by the Intergovernmental Panel on Climate Change (IPCC).

James hiked, fished, learnt to sail and experimented with hot air ballooning.

We can pollute the air with acids, the rivers with sewage(污水), the seas with oil

By inhaling air polluted with the virus.

The higher one climbs, the less oxygen there is in the air.

When people don't get enough oxygen, they often begin togasp for air

In the deaf culture of North America, many listeners show applause not by clapping their hands but by waving them in the air.

5 million people died prematurely from outdoor air pollution in 2015.

As stories go through the chains of people, they are refined, corrected and sorted out until they come finally to me and I have a chance to read through most stories before I go on the air.

But all these concepts are massively expensive, require safety certification standards for road and air, need dual controls, involve complex folding wings and propellers,and have to be flown from air-strips.

Citizens of wealthy nations demand national parks, clean rivers, clean air and poison-free food.

In two cases, huge machines have been used to lift the buildings up to 30 centimeters into the air.

Journalist Sarah Scoles reports that NASA currently tracks about 24,000 objects in space, and in 2016 the air Force had to issue 3,995,874 warnings to satellite owners alerting them to a potential nearby threat from another satellite or bit of debris.

Online security cameras, intelligent lighting and a wealth of sensors that control both temperature and air quality are offering an unprecedented level of control, efficiency, and improvements to what were once classed necessary costs when running a busin

That presumably included much more water than the tiny trace we find blowing in the thick air today.

The air can stay warmer, longer too.

The persistent haze over many of our cities is a reminder of the polluted air that we breathe, over 80% of the world's urban population is breathing air that fails to meet World Health Organisation guidelines.

They soar up to 40 meters into the cold air.

This sounds like so much hot air, but the near $13 billion fortune this entrepreneur has amassed comes from practical achievements rather than hypothetical ones.

Traffic has become synonymous with air pollution, and many countries intend to ban the sale of new petrol and diesel cars in the next two decades.

without those masses of cooling sea ice, warm air brought to the Arctic can penetrate further inland than it ever did before.