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单词
average life
释义
average life
Encyclopedia
理学
原子核
释
average life; mean life
平均寿命
放射性核素所有原子的平均存活时间。对于按指数规律衰变的体系,平均寿命是放射性核素的原子核数目衰减至起始时刻的1/e所需的时间。用符号τ表示。
Astronomy
average life
平均寿命
Chemistry
>放射化学与辐射化学>基础放射化学>释义
average life; mean life
平均寿命
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更新时间:2026/8/8 16:18:48