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準是控制大气污染措施之一。
the fact that effect of fuel quality on motor vehicle exhaust emission is very great has been proved by research and highly valued all over the world.
研究表明,燃料质量对汽车排放的影响很大,这一问题已受到世界各国的普遍重视。
with the development of automobile industry and a sharp increasing in the present quantity of vehicles, vehicle exhaust emission has become a main source of atmosphere pollution.