... 反应临界能;阈能;critical energy of reaction 有效阈能;effective threshold energy 裂变阈能;threshold energy of fission ...
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This creates what is known as a critical mass of nuclear material, which releases its energy instantaneously as atoms inside it split in an uncontrolled chain reaction.
这会造成核原料所谓的临界质量，当其中的原子在无法控制的连锁反应中***时，能在瞬间开释出能量。
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