pernicious gases

基本解釋

One of the most effective measures to control pernicious gases ejection and turn them into harmless gases is to use ternary catalyst.
控制有害氣體的排放，將有害氣體轉(zhuǎn)化為無害氣體的有效措之一就是采用三元催化轉(zhuǎn)化器。
Not only have the advantages of sending no harmful gases of formaldehyde, benzene, ammonia and TVOC (volatile organic compounds) out, also with the function of absorbing diversified pernicious gases.
不僅具備不散發(fā)甲醛、苯、氨氣、VOC（揮發(fā)性有機化合物）等有害氣體的優(yōu)點，而且具有吸附有害氣體的功能。
xkyn.net
The emissions produced during coke oven coal-charging contain pernicious gases, pollute the environment, and is harmful to human health.
焦爐裝煤煙塵含有害物質(zhì)，污染環(huán)境，危害人體健康。