略語大辞典 [E] 25 HTGR high-temperature gas-cooled reactor 高温ガス冷却炉. 高温ガス炉. 高圧ヘリウムガスで冷却する原子炉.high-temperature gas-cooled reactor; or HTGCR; or HTR(high temperature reactor); a type of nuclear reactor; [E]. 丸善「略語大辞典」JLogosID : 11877368