to control emissions

Nowadays trichloroethylene(TCE) has become one of the most widespread contaminants in groundwater because of its use in a large scale,which has drawn a lot attention of many countries for its persistence in environment and high toxicity to living things.

目前,三氯乙烯(TCE)的大规模使用,已使其成为地下水中分布最广泛的污染物之一。

It is very difficult for small and medium sized motorcycle engine to use the combination of closed-loop control electronic fuel injection system and three-way catalytic converter for emission controlling due to the high cost.

为此,通过化油器燃油供给特性的调整及燃烧室与进排气道结构优化,采用二次空气喷射系统和催化转化器,运用曲轴箱闭式通风装置减低曲轴箱窜气污染物,将现行生产的各种化油器式中小排量摩托车排气污染物控制在GB14622-2002排放限值内,实现摩托车发动机排放控制的强化。

This paper presents the problem of the pollution from vehicle emissions and lays special stress on the development, the principle and the application of the OBD diagnosis system in the vehicle emission controlling.

介绍了汽车排放对环境造成的污染 ,着重叙述了 OBD随车诊断系统的发展、原理及其在汽车排放控制方面的应

Future SO_2 and CO_2 emission control strategies in China;

未来中国的SO_2和CO_2排放控制对策

Progress made in emission control of air pollutant under MARPOL73/78,Annex VI;

MARPOL 73/78附则Ⅵ大气污染物排放控制的进展

Research on emission control of vehicle fuel-fired air heater;

汽车燃油空气加热器燃烧排放控制研究