noxious chemical substances 有害的
chemical noxious gases emission 有毒化学气体排放 ; 化学有害气体排放
Assault (homicide) by unspecified chemical or noxious substance 用未特指的化学制品或有害物质进行加害
If leak accidents once occur in chemical plants, a great lot of noxious chemical will be discharged to the environment, and it causes serious environmental pollution.
化工厂一旦发生突发泄漏事故，往往会使有毒化学品大量外泄，造成严重的的环境污染。
Rapidly expanding industries which involve more and more complex chemical processes will produce large volumes of liquid wastes, and many of these will contain chemicals which are noxious.
那些涉及越来越多复杂化学工艺的快速扩大的工业将会产生出大量的液态垃圾，同时这些大部分都含有有毒物质。
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