高效汽车排气净化催化剂是实现车外净化的关键因素之一。
High performance catalyst is one of the key factors for purifying the automotive exhaust gases.
为适应汽油无铅化及汽车排气净化装置的要求，开发出了高铬铸铁排气阀座。
In order to be suitable for the leadfree gasoline and meet the demand of automotive exhaust gas equipment, exhaust valve seat made of high-chromium cast iron is developed.
采用稀土元素部分或全部取代贵金属是研制开发三效汽车排气净化催化剂的重要方向。
Authors propose that the partial or whole replacement of noble metals by rare earth elements is an important direction in the future developments of emission control three way catalysts.
1960年，加州大学洛杉矶分校（UCLA）科学家理查德·D.霍帕（Richard D.Hopa，左起）和木村宏（Hiroshi Kimura）在一辆福特小型载客汽车上展示实验性的催化式排气净化器。
UCLA scientists Richard D. Hopa (left) and Hiroshi Kimura show off an experimental catalytic converter on a Ford Ranch Wagon in 1960.
除了对催化式排气净化器造成不良影响减少其使用寿命外，锌磷还同废气形成混合物加入到汽车行业废气污染的行列。
Apart from poisoning the catalytic converter and reducing its useful life, zinc and phosphorus mixed in with the exhaust gases add to the motor industry's emissions woes.
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。
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。
It refers to install the three way catalytic converter at the automobile exhaust pipe, and rapidly transform the harmful ingredients into innoxious substance.
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