The emission control system is required by law to reduce the air pollution 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。
Objective to investigate impact of coal-burning air pollution on respiratory system among primary and middle school students, and to provide evidence for the prevention and control of air pollution.
目的探讨煤烟型大气污染对中小学生呼吸系统健康的影响，为大气污染的预防控制提供依据。
Currently, air clean technology is the only approach to control operating room pollution and general security system is overlooked in our country.
当前我国手术室污染控制过于强调空气洁净技术，忽略了综合保障体系。
The result shows that the system can confirm the effect of vehicle emission on air pollution composition and evaluate the effect of traffic management and control strategies on vehicle emission.
结果表明：该系统不但可估算并预测车辆在某一路段的污染物排放水平，还可评价交通管理改进措施对车辆排放的影响。
The successful development of this air-purifier's circuit control system, will make a significant contribution for indoor air pollution control and air purification technology inevitably.
该空气净化器电路控制系统的成功研制，必将为室内空气污染控制与空气净化技术作出巨大的贡献。
The successful development of this air-purifier's circuit control system, will make a significant contribution for indoor air pollution control and air purification technology inevitably.
该空气净化器电路控制系统的成功研制，必将为室内空气污染控制与空气净化技术作出巨大的贡献。
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