... Us Air Force Standard 美国空军标准 exhaust air pollution standard 排气污染标准 indoor air quality standard 室内空气质量标准 ...
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To formulate an adaptable motor vehicle exhaust emission standard is one of the important events of air pollution control according to domestic and foreign experience.
根据国内外经验，制订合适的汽车废气排放标准是控制大气污染措施之一。
Besides, due to the improved living standard , more andmore people buy private cars and the exhaust fumes emitted by carslead to air pollution in the city.
此外，由于不断改善的生活水平，越来越多的人购买私家车，汽车排放的尾气导致了城市的空气污染。
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