spontaneous fission process

• 自发裂变过程

spontaneous fission process的用法和样例：

例句

1. In fission processes, the fission fragments are very radioactive.
   在裂变过程中，裂变碎片的放射性很强。
2. The occurrence of odd-parity shape oscillations in the saddle-point spectrum plays an important role in the interpretation of asymmetry andanisotropy in the fission process.
   在裂变过程中，解释非对称性和非各向同性时，奇宇称形状振荡在鞍点谱中起主要作用。