Federal regulations imposed nox exhaust-emission standards on all 1973 passenger vehicle . 联帮政府的法规又强制规定了所有1973年起的新型载客汽车排放Nox废气污染物的标准。
The point source data file contains data for sources emitting more than a specifilc amount of a pollutant per year . 点污染源数据文件列有每年超量排放污染物的污染源数据。
Evaluation of emissions and control equipment is for the development of new pollutant source performance standards . 对排放量和控制设备进行评价为的是制定新污染源的执行标准。
When farmer spray poison to kill plant pests , poison is sent into the air the water and the soil . 当农民为了杀死害虫而喷洒农药的时候，有毒物就被排放到空气中，水里和土壤里。
This chapter describes methods of estimating airborne pollutant concentration distributions associated with various emission sources . 本章论述几种有关各种排放源的大气污染物浓度分布的估算方法。
Co is a dangerously poisonous gas that is emitted into the air in relatively large quantities by the automobile engine . 一氧化碳（CO）是一种由汽车发动机以相对大的量排放到空气中的危险污染气体。
The availability of new passenger cars each year depends on whether car makers successfully complete an emission certification process . 每年新车是否可用，取决于汽车制造者是否成功地完成排放物鉴定程序。
Jones has reported the use of a holding pond and controlled discharge of chloride waste, where underground disposal was prohibited . 琼斯报道了在禁止地下处置的情况下，采用收集池和控制含氯化物废水的排放。
The ford system for air-fuel mixture control is tied in with the thermactor or air-injection system of exhaust emission control . 这种福特系统，空气燃料混合气控制是同空气喷射排气净化系统或有害排放控制的空气喷射系统结合在一起的。
Drainage improvement in east kowloon - package b 东九雨水排放系统改善计划b部分
