“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	semi-compact set semi-compact space semicomplement semi-complemented lattice semi-complete semicomputability semicomputable semicomputable predicate semicomputable set semiconduct-gassensitive element semi-conducting bolometer semiconducting carbon nanotube semiconducting paper semiconducting polymer semiconducting solid solution semiconduction semiconductive varnish semiconductivity semiconductor semiconductor affinity semiconductor based electro absorption waveguide modulator semiconductor-based electro absorption waveguide modulator semiconductor catalysts semiconductor catalysts and photocatalysis semiconductor ceramics

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