半浸式螺旋桨
surface piercing propeller
partially submerged propeller
垂直式螺旋转子推导流量计
inferential helical rotor vertical pattern flowmeter
电动螺旋式泥浆输送机
electric sludge conveyer worm
多探头螺旋式电脑断层扫描仪
Multi-detect or Helical Computed Tomography
分离式螺旋热管
Separated helical heat pipe