harmful substance [环境] 有害物质 ; 有毒物质
toxic and harmful substance 有毒 ; 有害物质 ; 有毒有害物质
potentially harmful substance 可能有害物质 ; 潜在有害物质
harmful substance and reagent 危险物质或制剂
chemical harmful substance monitoring [环境] 化学有害物监测
concentration of harmful substance 有害物质浓度
limit of harmful substance 有害物限量
Exposure to a harmful substance 危险物接触
harmful substance report 有害物质报告
Poisonous and harmful substance 有毒和有害物质 ; 有毒有害物质
These instructions, defense artificially added chemicals in food, some harmful substance is but with the naked eye or simple method of inspection.
这些说明，防御食品中人为的添加化学物质、有害物质有些是可是用肉眼或简单的方法检验出来的。
Filter tips clean some harmful substance from the smoke.
滤嘴能消除香烟中一些有害的物质。
Through the transformation function of modifier, it successfully realizes zero emission of such harmful substance as CH2O in combustion of low-carbon fuel.
通过改性剂的转化作用，成功实现低碳燃料燃烧时甲醛(CH2O)等有害物质的零排放。
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