“engine variable valve timing control”的概念、定义、翻译、参考文献-科学参考

单词	engine variable valve timing control
释义	engine variable valve timing control Encyclopedia 工学发动机电子控制系统释 engine variable valve timing control发动机可变气门正时控制通过机械、电磁或液压控制等方式，改变发动机气门开始开启和关闭时刻的气门正时，从而改善燃烧过程，尽量减少耗油量和废气排放，从而提高发动机的综合性能的技术。
随便看	technical camera technical capability technical characteristics of patent technical checking technical clarification technical code for subsoiling of agricultural machinery technical coefficient Technical Committee for Standardization of Transport and Environmental Protection technical condition of exploitation technical condition of mining technical condition of ore process technical data of aircraft equipment technical development vehicle Technical Director technical-economical quota of vehicle operation technical economic evaluation method technical economic evaluation of ship technical economic indexes of irrigation district management technical education technical effectiveness technical efficiency of health services technical elites technical environment technical error technical factor of sprinkler irrigation

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