- n.等距不等深螺杆
- constant depth variable pitch screw: 等深不等距螺杆
- constant bepth variable pitch screw: 等深不等距螺杆
- decreasing pitch and depth screw: 不等深收敛式螺杆
- variable pitch screw: 变距螺旋桨; 变距推进器; 变螺距螺旋桨; 变螺距推进器; 可调螺距螺旋桨; 收敛式螺杆
- constant pitch screw: 等距螺纹螺杆
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