基本解釋霛敏閥英漢例句雙語例句To solve the shortcoming of quick action, the application on which proportional valve-cylinder system control the positioning and cushioning is studied in this paper.針對多方位牽引牀快速控制存在的問題，本文對比例閥控制油缸的緩沖與定位進行了應(yīng)用研究。quick action valve更多例句詞組短語短語quick -action angle stop valve 快速熱閥quick action valve更多詞組專業(yè)釋義交通運輸工程速動閥