fission是什么意思及用法
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英音
['fiʃən] ;
美音
['fiʃən] ;
英语解释
- a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
- reproduction of some unicellular organisms by division of the cell into two more or less equal parts
1.【物】（原子的）分裂，裂变
2.【生】分裂生殖