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excitation lifetime
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excitation lifetime
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excitation lifetime
激发态寿命
处于激发态的原子回到基态或低激发态需要的时间。每个原子(分子或离子)在激发态停留的时间并不相同,但大量同种激发态原子的平均停留时间是确定的,激发态寿命指的就是这个平均寿命。
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