It refers to install the three way catalytic converter at the automobile exhaust pipe, and rapidly transform the harmful ingredients into innoxious substance.
机外净化是指在汽车排气管上安装三效催化转化器，使尾气中的有害成分迅速转化为无害物质。
When the automobile exhaust system is modeled, the exhaust system is divided into two parts-the exhaust pipe and the catalytic converter.
在对汽车尾气系统进行建模时，把尾气系统分为尾气管段和催化转化器两部分。
A ferritic stainless steel welded exhaust pipe used in automobile is developed in Japan by laser welding. The contents of this paper are: the property demands of exhaust pipe for automobile;
本文综述了日本主要钢铁公司科研单位采用激光焊接法开发出汽车排气管用具有高加工性能的铁素体不锈钢焊管概况。
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