“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	urban construction investment urban construction land structure urban construction project archives management urban control network urban control survey urban crisis urban cultural landscape urban decentralization urban design urban design and theory urban design bonus urban design code urban design control urban design element urban design for Hammarby Lake City, Stockholm, Sweden urban design for Philadelphia, U.S. urban design for the Docklands district in London, UK urban design guidance urban design of Bei Chuan，China urban design of Chongqing Jiefangbei Commercial pedestrian street urban design of ChongqingYuzhong Peninsula urban design of Futian Central District, Shenzhen, China urban design of Hai River Area, Tianjin, China urban design of Huaqiaocheng, Shenzhen, China urban design of Inner Harbor, Baltimore, US

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。