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汉语拼音：qì chē wěi qì wū rǎn

由汽车排放的废气造成的环境污染。主要污染物为碳氢化合物、氮氧化合物、一氧化碳、二氧化硫、含铅化合物、苯丙芘及固体颗粒物等。能引起光化学烟雾等。

• Three-way catalyst (TWC) is the control of vehicle exhaust pollution one of the most effective means.

  三效催化剂（TWC）是目前控制汽车尾气污染最有效的手段之一。

• In this paper, three future directions, clean fuels, replaceable fuels and catalytic purifier, were discussed briefly.

  本文主要从清洁燃料、替代燃料以及催化转化三个方面阐述汽车尾气污染控制的发展动态。

• At present, one of methods that solves the pollution commonly used is purification outside the engine.

  目前，解决汽车尾气污染的常用方法之一是机外净化法。

• With automobile's increasing, the consumption of engine's oil and the pollution of automobile, which becomes the focal point day by day.

  随着汽车拥有量的增加，汽车发动机耗油量和汽车尾气污染，已成为人们日益关注的焦点。

• Beijing is fighting auto pollution by instituting China's highest vehicle emissions standards.

  北京市为了治理汽车尾气污染，制订了中国最严格的尾气排放标准。

• The oxidation of CO plays important roles in control of automotive emission and theoretical research.

  CO氧化反应是控制汽车尾气污染和理论研究的重要课题之一。

• Vehicle emission as automobile grows increasingly serious harm people's health.

  汽车尾气污染随着汽车的增长而日益严重，危害着人们的健康。

• The use of LPG a new energy, can effectively reduce the offgas pollution and improve the atmosphere.

  液化石油气（英文缩写为LPG）做为一种新型的能源，可以有效地治理汽车尾气污染.改善大气环境。

• In fact the exhaust gas from cars makes the air dirty and they waste energy.

  事实上，汽车尾气污染了空气，浪费能源。