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。
2
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；
3
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.