用二进制数对递次衰变链的衰变路径进行编码。
The decay pathways in successive decay chain were coded with binary digits.
氡是天然放射性惰性气体，是铀系衰变链中的一个衰变产物。
As a product from the uranium disintegration, radon is a natural radioactive idle gas.
它产生于铀衰变链中的镭，而铀是所有岩石和土壤中都能找到的一种元素，含量各不相同。
It is produced from radium in the decay chain of uranium, an element found in varying amounts in all rocks and soil.
研制了聚变一裂变混合堆放射性计算程序fdkr和配套的衰变链数据库af—DCDL—IB。
A computer code FDKR and its associated data library AF-DCDLIB have been developed for fusion-fission hybrid reactor radioactivity calculations.
研制了聚变一裂变混合堆放射性计算程序fdkr和配套的衰变链数据库af—DCDL—IB。
A computer code FDKR and its associated data library AF-DCDLIB have been developed for fusion-fission hybrid reactor radioactivity calculations.
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