Another early approach to controlling exhaust emissions was the engine modification, or controlled - combustion system.

另一种早期的控制排气污染的途径是发动机调整或控制燃烧系统.

辞典例句

The greatest amount of exhaust emissions are produced at idle and during low - speed operation.

排气中最大量的排放物是在怠速和低速运行时产生的.

辞典例句

Automotive exhaust emissions have been the main source of air pollution.

汽车尾气排放污染已是大气污染的主要来源.

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The truck's diagnostics system ensures that the exhaust emissions really do meet the legislated levels.

车辆诊断系统可确保尾气排放真正达到法规标准.

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The quality of mixture has important influence on exhaust emissions swirl chamber diesel engines.

通过改进柴油机供油系统和利用废气再循环来改善混合气质量和燃烧过程,进而降低其有害排放.

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Improving combustion for reducing exhaust emissions is a top research project swirl chamber engines.

系统报道了通过改进燃烧室结构设计降低排放的实验方法和手段.

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This paper studies the effects of gasoline sulfur and olefin content on vehicle exhaust emissions.

主要的研究因素是汽油硫含量和烯烃含量.

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