valve actuation

基本解釋

Continuously Variable Valve Actuation system.
連續(xù)可變氣門驅(qū)動系統(tǒng)。
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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(fā)動機電磁氣門驅(qū)動（EVA）裝置為對象，采用試驗方法研究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.
無凸輪軸氣門驅(qū)動的主要問題是響應速度不夠高、氣門落座沖擊、能耗過高以及驅(qū)動系統(tǒng)復雜昂貴。