The main gearbox shifts gear by hand. distance control, the gearshift mode is double H.The auxiliary gearbox shifts gear automatically by compressed air .是什么意思_The main gearbox shifts gear by hand. distance control, the gearshift mode is double H.The auxiliary gearbox shifts gear automatically by compressed air .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句