swing gate piston pump 摆阀式活塞泵

swing gate 掩闸 ; 旋转门 ; 摆动门

swing-out gate 外掩闸

swing caisson gate 旋转沉箱门

Metal swing gate 金属平开门

Swing Gate Motor 车行通道

swing gate piston pump coupling 摆阀式活塞泵连轴器

swing type metal gate 铁掩闸

gate voltage swing 闸极电压摆幅