The 0.5 hp motor was mounted on vertical rails at the back of the headstock-end leg and could be moved up and down, to adjust the belt tension.是什么意思_The 0.5 hp motor was mounted on vertical rails at the back of the headstock-end leg and could be moved up and down, to adjust the belt tension.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句