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1微秒=10⁻⁶秒,1毫秒=10⁻³秒,1百万年=10⁶年,1吉年=10⁹年 |
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1微秒=10⁻⁶秒,1毫秒=10⁻³秒,1百万年=10⁶年,1吉年=10⁹年 |
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1微秒=10⁻⁶秒,1毫秒=10⁻³秒,1百万年=10⁶年,1吉年=10⁹年 |
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![]() The members of this series are not presently found in nature because the half-life of the longest lived isotope in the series is short compared to the age of the earth. 该系列中的成员目前在自然界中未被发现,因为该系列中最长寿命同位素的半衰期远短于地球的年龄。
1微秒=10⁻⁶秒,1毫秒=10⁻³秒,1百万年=10⁶年,1吉年=10⁹年 |
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