Study on Heavy Load Hydrodynamics and Characteristic Investigation about Vibration and Noise Reduction of Propeller with Sawtooth Shape Tip是什么意思_Study on Heavy Load Hydrodynamics and Characteristic Investigation about Vibration and Noise Reduction of Propeller with Sawtooth Shape Tip在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句