Power generation industry is the largest exhaust source of greenhouse gas; it takes up above 40% of total greenhouse gas exhaust volume in the energy industry.

发电业是最大的温室气体排放源，占整个能源行业温室气体排放总量的40%以上。

youdao

As more and more cars are produced and used, so the emission from their exhaust-pipes contains an ever larger volume of poisonous gas.

随着越来越多的汽车被制造和使用，这些汽车排气管里的排放物所包含的有毒气体的总量也越来越多。

youdao

Interlinked with the exhaust port volume of the space c, is gradually reduced, and is in the discharge process.

而与排气口相通的空间c的容积是逐渐缩小的，正处于排气过程。

youdao

Nitrogen is separated from oxygen before combustion, thereby reducing the volume of exhaust gas and making the exhaust easier to treat by preventing the formation of polluting nitrogen oxides.

FORBES: Companies, People, Ideas