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中子能群 neutron energy group

时间：2021-07-18 00:21 关键词：

答案解析

任意选定的能量间隔内的中子组成的群。对每个能群的物理参量可赋予各种有效值来表示该群中子的特征。

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When energy is converted from one from to another, some energy is always lost as heat. （） , no energy conversion is 100% efficient.
中子能群 neutron energy group
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