短語詞組短語v belt -transmission v帶傳動belt conveyor transmission 帶式輸送機傳動belt conveyer transmission agent 帶式輸送機傳動belt conveyer transmission 帶式輸送機傳動the v belt -transmission v帶傳動v -belt-transmission 帶傳動belt transmission system 皮帶傳輸系統(tǒng)flat -belt transmission 平帶傳動sychronous belt transmission 同步帶傳動 返回 belt transmission