roul meaning in Chinese

劳尔
鲁尔

The project based on the present level of technology to control exhaust of car , and the shortage application for cool egr in our country , aimed to research a kind of cool egr system which could adjust egr temperature automatically according to different working conditions of internal combustion engine . so the intelligent cool egr would be realized to decrease nox from car , which can satisfy the roul of low emission in our country
本课题基于我国当前汽车排放技术相对落后的现状,针对我国现阶段汽车发动机冷却废气再循环( egr )应用较少的问题,研制开发出一种能根据发动机不同工况调节egr冷却温度的外部冷却egr系统,以实现冷却egr的智能控制和精确控制,减少汽车尾气中nox的含量,满足国家的排放法规,减少汽车尾对环境的污染。