词汇	submerged arc
释义	submerged arc 埋弧
随便看	Direct Commercial Sales direct commissary support Direct Commissary Support System direct communication Direct Communication Check Direct Communications Link direct communications network Direct-Communication Teaching Model direct communication with sb direct community receiver direct commutation Direct company asking a boat direct comparative advertisement direct compare method direct comparing direct comparison direct comparison method direct comparison method of measurement direct-comparison method of measurement direct-comparison weighing direct compatibility direct compensation measurement direct competition direct competition strength direct competitive ELISA