The conventional design method of external gear shaper cotter is improvedin this peper. The design efficiency is greatly developed, and the design time is shortened 2/3.是什么意思_The conventional design method of external gear shaper cotter is improvedin this peper. The design efficiency is greatly developed, and the design time is shortened 2/3.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句