propeller regulating mechanism 螺旋桨调节机构
propeller-regulating mechanism 推进器调节机构
Peculiarities and mechanism of propeller singing are described based on results of acoustic measurements and vibration excitation tests of a Marine propeller.
本文根据某船螺旋桨的噪声测量和激振试验结果，描述了螺旋桨鸣音的特点和产生鸣音的机理。
Its driving mechanism is the propeller for shaping the quality of civilization.
其动力机制是塑造文明素质的推进器；
The mechanism and real significance of the blade shape modification technology of propeller, as well as the calculation method and technical process for blade edge cutting are briefly introduced.
本文概括地说明了螺旋桨修边技术的机理和现实意义，介绍了有关的计算方法，以及切割的工艺过程。
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