基本解释[交通运输工程]变速箱皮带轮英汉例句双语例句The gearbox of the drive must remain coupled to the drive pulley for the holdback to function.变速箱必须与驱动轮保持耦合，才能起到联轴功能。词组短语短语gearbox cover pulley 变速箱皮带轮专业释义交通运输工程变速箱皮带轮