短语词组短語acid tin plating bath 酸性鍍錫液tin bath bottom 錫槽底tin bath design 錫槽設計bright acidic tin bath 酸性鍍錫tin bath technology 錫槽技術acidic tin bath 酸性鍍錫molten tin bath [冶]錫槽tin bath sluice 槽出口牐板heating tin bath 錫槽加熱 返回 tin bath