['fiʃən]
fission
n. 裂开,分裂,分体

例句与用法:

  1. A substance, such as water or graphite, that is used in a nuclear reactor to decrease the speed of fast neutrons and increase the likelihood of fission.
    慢化剂一种物质,如水或石墨在核反应堆中用来减缓中子运动速度和提高裂变可能性的物质

英英解释:

名词 fission:

  1. a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
  2. 同义词:nuclear fission
  3. reproduction of some unicellular organisms by division of the cell into two more or less equal parts