如果那是大于1，也就是说我们创造了，更多的中子，在一代里，相对于下一个，中子数增长，裂变速率也一样。
If it's greater than one, namely we produce more neutrons in one generation compared to the next the neutron population grows as does the fission rate.
硼中子俘获疗法是60年代兴起的治疗恶性肿瘤的新方法，属于多学科多技术相结合的一门应用科学。
Boron neutron capture therapy(BNCT), a new cure for cancer, appeared in 60 's, which consists of polytechniques and manifold subjects.
到了1930年代初，发现原子核是由更小的叫做质子和中子的粒子组成。
By the early 1930s it was found that the nucleus is composed of even smaller particles, called protons and neutrons.
到了1930年代初，发现原子核是由更小的叫做质子和中子的粒子组成。
By the early 1930s it was found that the nucleus is composed of even smaller particles, called protons and neutrons.
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