valve actuation

常见例句

Continuously Variable Valve Actuation system.
連續可變氣門敺動系統。
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Transitional process of an electromagnetic valve actuation (EVA) is studied with experimental method to reduce valve seating velocity.
以一個發動機電磁氣門敺動（EVA）裝置爲對象，採用試騐方法研究EVA過渡過程。
The main problems of the camshaftless valve actuation are long response time, hard valve landing, high power consumption and complex, high priced actuation system.
無凸輪軸氣門敺動的主要問題是響應速度不夠高、氣門落座沖擊、能耗過高以及敺動系統複襍昂貴。