相关单词近义词 plutonium bomb 钚弹, atom bomb 原子弹, atomic bomb 原子弹, A-bomb 原子弹临近词fission, fission fragment, fissioning isomer, fission converter, fission fragments, fission resonance, fission-neutron, fission track age, fission parameter, fission mechanism, fissionable metal 返回 fission bomb