Raise fuel economy standards; require lower emissions from automobiles.
提高节约使用燃料的标准; 要求减少汽车尾气排放.
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The trend of automobile exhaust in Hengshui is fluctuating in recent years.
衡水市近几年汽车尾气污染呈起伏下降趋势.
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The environmental objective of reducing auto emissions justifies the investment.
这样一来,减少汽车尾气排放的目标便得以实现.
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Many PAHs are carcinogenic or are suspected to be carcinogenic.
其主要来源于煤的不完全燃烧,也有相当部分来源于汽车尾气的排放.
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It is used in baking the beehive catalyzer in exhaust gas purify organ of auto.
该窑炉用于汽车尾气净化器催化剂焙烧.
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本文主要从清洁燃料 、 替代燃料以及催化转化三个方面阐述汽车尾气污染控制的发展动态.
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Points out that the automobile emission is actua lly a form of thermal plume.
指出停车库内汽车尾气的流动过程可看作烟羽的形成过程.
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用途: 可用于汽车尾气净化气催化烧成后的还原处理.
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Motor vehicle emissions, to a large extent, are responsible for urban air pollution.
汽车尾气在很大程度上造成了城市的空气污染.
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