Adopting air-controlled positioning, noiseless and easy for maintenance.

使用空气缸定位，无噪音，易于保养。

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While it remains to be seen whether air pollution can be controlled, the status quo is far from encouraging.

空气污染能否得到控制仍有待观察，而现状则远不足够让人为之振奋。

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Air terminals buildings adopt air supply tower, floor exhaust grillage and smoke exhausting skylight controlled by infrared detector.

候机楼采用了地面送风亭射流送风方式、地面排风方式及红外线对射探测器控制的排烟天窗。

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If you hear the radio and TV ads for this bed--a remote-controlled air mattress--you can be forgiven for thinking its chief aim is to save marriages.

FORBES: Magazine Article

In 2008, Reapers and Predators, the Air Force's two primary remote-controlled vehicles, will spend almost 120, 000 hours in the air on reconnaissance and intelligence missions, up from just over 80, 000 hours last year and less than 5, 000 in 2001.

FORBES: War Without Soldiers

It is to add dioxin to the list of toxic chemicals controlled under an air-pollution law.

CNN: Warning -- this garbage is dangerous