infinite medium 无限介质 ; 无限大介质
infinite homogeneous medium 无限均匀介质
infinite medium neutron lifetime 无限介质中子寿命
semi-infinite medium 半无限介质
infinite medium multiplication factor 无限介质增殖因子
infinite medium lifetime 无限介质寿期
infinite medium multiplication constant 无限介质增殖系数
infinite conduction medium [物] 无限传导媒质
semi infinite medium 半无限大介质
half-infinite medium 半无限介质
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