The author briefly introduces the history of hydraulic retarder,stressing on its basic structure,working principles and control modes.The author also presents a primary analysis on braking effect.是什么意思_The author briefly introduces the history of hydraulic retarder,stressing on its basic structure,working principles and control modes.The author also presents a primary analysis on braking effect.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句