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he wei san yuan cui hua jing hua qi
Author(s): 
Pages: 50
Year: Issue:  5
Journal: Auto Application

Keyword:  催化净化器催化剂载体贵金属催化转化装置理论空燃比汽车尾气净化作用电喷发动机氧气传感器金属封装;
Abstract: <正> 三元(三效)催化净化器是指对汽车尾气中的CO、HC和NO_x同时具有净化作用的催化转化装置。目前,国外主要以铂、钯、铑等贵金属为催化剂,国内正在研制以稀土加少量贵金属为催化剂的三元催化净化器。
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