... 二、 概率的统计定义(The statistic definition of probability) 三、 概率的性质(The property of probability) （1） 因为 与 互斥，所以 ， = =P(B)= ...
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针对不同的分布模型，分别分析了其失效概率的性质，并给出了失效概率的估计方法。
For different models, the failure probability characteristics and evaluation methods have been studied respectively.
所有这些性质同时精确地取到适合这个宇宙存在的值的概率简直是一个天文数字。
The odds against all theseproperties simultaneously having precisely the one value necessary for thisuniverse are quite literally astronomical.
Jaczko表示，出于对核反应堆设计以及对事故性质的考虑，有害放射性物质抵达美国，包括夏威夷及美国本土的概率非常小。
Based on the reactor design and nature of the accident, there is very low probability of any harmful radiation levels reaching the United Sates, including Hawaii and U.S. territories, Jaczko said.
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