Those new pieces include two new nuclei (byproducts), some photons (gamma rays), but also some more free neutrons, which is the key that makes nuclear fission a good candidate to generate energy.
产生的新组成包括两个新原子核(副产物)、一些光子(伽马射线)以及更多的自由中子，它们是参与核裂变反应并产生能量的关键。
The free neutrons can bombard other nuclei, leading to a series of fissions called a chain reaction.
自由中子可以轰击其它的核，导致一系列的裂变，称为链锁反应。
The chalazal parts of the endosperm containing free nuclei forms several lobes.
包含游离核的合点端胚乳部分形成几个裂片。
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