fission fusion fission bomb裂变;聚变
nuclear fission bomb核分裂弹
fission-fusion bomb裂变
fission n fusion fission bomb裂变
critical mass of fission bomb分裂弹的临界质量
bomb fission-fusion-fission分裂熔合分裂弹
N（名词） a bomb in which the energy is supplied by nuclear fission 裂变式原子弹→see atomic bomb