The emission control system is required by law to reduce the airpollution the engine could produce.
排放控制系统按法规要求来降低发动机可能产生的空气污染。
2
Results: The main channel of atmospheric pollution and the law governing the changes in concentration were summed up and a proposal for the control of air quality in the compartments was advanced.
结果：分析归纳了舱室大气污染的主要途径及浓度变化规律；提出了舱室大气质量控制建议。
3
The author provides some Suggestions to perfect the law of airpollutioncontrol in China.