有害气体 meaning in Chinese

deleterious gas
foul gas
harmful gas andvapo
noxious gas

Harmful gases must be drawn out by centrifugal ventilator .
有害气体必须通过离心式通风装置排出。
Method of eliminating the poisonous gas in blast smoke
消除炮烟中有害气体的方法
I was doing yoga , plus i had some really bad gas
我刚在做瑜珈，还有些有害气体
High absorbability for various hazardous gases
对各种有害气体均有良好的吸收效率。
The harmful gas protection in taizishan tunnel
台子山隧道有害气体防治

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