roul 中文意思是什麼

roul 解釋
勞爾
  1. 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

    本課題基於我國當前汽車排放技術相對落後的現狀,針對我國現階段汽車發動機冷卻廢氣再循環( egr )應用較少的問題,研製開發出一種能根據發動機不同工況調節egr冷卻溫度的外部冷卻egr系統,以實現冷卻egr的智能控制和精確控制,減少汽車尾氣中nox的含量,滿足國家的排放法規,減少汽車尾對環境的污染。
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