二に次じ冷れい却きゃく水すいにじれいきゃくすいMeanings1nounsecondary cooling waterTechnical term used in nuclear engineering, especially for the secondary coolant loop in a pressurized water reactor (PWR).加か圧あつ水すい型がた原げん子し炉ろでは、二に次じ冷れい却きゃく水すいが蒸
