短語詞組短語once -through seawater cooling system 海水直流冷卻系統(tǒng)Seawater Once -through Cooling 海水直流冷卻技術seawater once -through cooling system 海水直流冷卻系統(tǒng)combined closed -loop and once-through cooling 混郃式冷卻 返回 once-through cooling