With the more and more strict exhaust emission regulation in the world, the low exhaust emission has been the first object in the engine control technology.
随着排放法规的日益严格，低排放成为发动机控制技术的第一目标。
This paper introduces the three-way emission control technology and the principle of auto exhaust catalytic converter. The main composition of the three-way-catalyst is also reviewed.
介绍汽车尾气三效催化净化技术及净化器的主要工作原理，并对三效催化剂主要成分： 载体、 涂层、 活性催化剂及助剂进行论述。
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