air oil-less compressor 无油空气压缩机
Less air pollution 更少的空气污染 ; 减少空气污染
Less air pollution here 这里空气污染少
air r oil-less compressor 无油空气压缩机
ADJ If a place is airless, there is no fresh air in it. 不通风的; 无新鲜空气的
...a dark, airless room.
...黑暗不通风的房间。
The American plane was in the air less than 10 minutes later.
美国派出的飞机也在10分钟后起飞返航。
We are sure that if there are fewer people driving, there will be less air pollution.
我们确信，如果开车的人少一些，空气污染就会少一些。
The higher one climbs, the less oxygen there is in the air.
爬得越高，空气中的氧气就越少。
Mars has less gravity. My attempts to walk resulted in jumps and hops, which took me into the air.
VOA: special.2010.07.10
But some operators are less pleased. Loren Rutherford of Nomad Adventure Tours says higher air fares to South Africa have hurt her moderately-priced camping safaris.
VOA: standard.2010.06.03
Although the revised plan involves anti-ballistic missiles installed at a former air base in Poland, defense experts say Moscow perceives the new project as less threatening to its security.
VOA: standard.2009.10.23
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