Harmful ingredient content 有害成分含量
The close-loop EGI system with threeway catalyst has been verified efficiently to reduce the harmful ingredient in exhaust gas of car.
在汽车中应用带有三元催化剂的闭环电喷系统可以有效降低汽车尾气中的有害成分。
Presently, catalytic converter is the most effective equipment to emission control, which can reduce harmful ingredient of automobile emission.
催化转化器能减少汽车排放物中的有害成分，是目前最有效的汽车排放控制装备。
But the contents of the drugs vary. Some contain active ingredients, but others contain no active ingredient or even harmful ingredients such as boric acid.
不过，药物的成分不一，有些内含有效成分，其他则否，甚至含有如硼酸之类的有害成分。
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