PANG Mao. Study on nonlinear feature of vibration signal in automobile main reducer[D]. Hangzhou: Zhe jiang University, 2006.是什么意思_PANG Mao. Study on nonlinear feature of vibration signal in automobile main reducer[D]. Hangzhou: Zhe jiang University, 2006.在线翻译_英语_读音_用法_例句