离合器式螺旋压力机
Clutch type spiral press
Clutch screw press
Clutch-operated screw press
对旋式通风机
Counter rotating fan
Counter-rotating Axial Flow Fan
Counter-rotating Fan
contra-rotating fan
counter-rotating ventilator
Counter-rotating Axial Fan
contra rotating axial fan
多室直通式旋风分离器
multicellular straight through cyclone
固定叶轮直通式旋风分离器
fixed impeller straight through cyclone
半浸式螺旋桨
surface piercing propeller
partially submerged propeller