It is put forward to apply such schemes as the No.13 coupler with big swing angle,ST draft gears, and dry type lubricant for center plates and wheel flange.The result of operation is good.是什么意思_It is put forward to apply such schemes as the No.13 coupler with big swing angle,ST draft gears, and dry type lubricant for center plates and wheel flange.The result of operation is good.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句