“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	Newton-Padé approximation Newton parallelogram Newton polygon Newton polyhedron Newton potential Newton problem Newton-Raphson algorithm Newton-Raphson fractal Newton Raphson method Newton-Raphson method Newton relation Newton ring Newton second law Newton series Newton's first law Newton, Sir Isaac Newton's law of motion Newton's laws of motion Newton slope Newton's method Newton's rings Newton's second law Newton's third law Newton-Stirling formula Newton theorem

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