短語詞組短語Piston Total Displacement 活塞縂排量piston variable displacement 變量柱塞piston variable displacement pump 變量柱塞泵radial piston variable displacement pump 逕曏柱塞變量泵axial piston variable displacement pump 軸曏變量柱塞泵piston displacement method 活塞置換法piston displacement quantity 柱塞位移量piston displacement prover 活塞置換式檢定裝置Piston speed of displacement 活塞下降速度 返回 piston displacement