1·Wastepaper causes the release of a kind of harmful gas.
废纸会导致一种有害气体的释放。
2·Thanks to chemistry, we know bleach can't be mixed with vinegar, because the mixture can produce harmful gas.
多亏了化学，我们知道漂白剂不能和醋混合，因为这种混合物会产生有害气体。
3·They can take harmful gas from the air.
它们能带走空气中的有害气体。
4·Decrease the release of harmful gas such as ammonia.
降低像氨气等有害气体的释放。
5·The discharge of harmful gas into open air is dangerous.
将有害气体释放到空气中是危险的。
6·Environmental protection, no heavy metals and harmful gas.
环保，没有重金属和有害气体。
7·Only for gasoline exhaust the harmful gas emissions of 10% ~ 50%.
尾气中的有害气体排放量仅为汽油的10% ～ 50%。
8·Discomposes harmful gas quickly such as formaldehyde, benzene, ammonia and have no side effect.
瞬间分解甲醛、苯、氨等有害气体，无副作用；
9·A new project that aims to safely dispose of harmful gas emissions has been launched in Australia.
一项以安全为主，处理温室气体排放的新计画在澳洲成立。
10·Enclosed promote effectively prevent the dust and harmful gas pollution to the working environment.
封闭式提升有效的防止了粉尘和有害气体对工作环境的污染。