Check for surface contact area (metallic contact) between stern shaft and propeller hub tapers.
检查螺旋桨轴与螺旋桨锥度接触面。
It serves to replace or complement the propeller, wheel, jet engine, solid fuel, etc, in the area of transportation and use in space travel.
它在运输和太空旅行应用领域中,用来取代或补充推进器、轮盘、喷气发动机、固体燃料等。
It serves to replace or complement the propeller, wheel, jet engine, solid fuel, etc, in the area of transportation and use in space travel.
它在运输和太空旅行应用领域中,用来取代或补充推进器、轮盘、喷气发动机、固体燃料等。
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