The number of stars appearing in the field of view can be regard as a statistic process obeying Poisson distribution.
本文把出现在视场内的恒星数量看成是一个服从泊松分布的随机过程。
The second is to regard the Poisson distribution as a Gaussian distribution approximately.
近似性之二，则是将泊松问题近似地看作高斯分布问题。
Highly attenuated laser pulses with Poisson distribution are used as single-photon sources and the BB84 and B92 protocols are used for free-space quantum key distribution.
在自由空间量子密钥分配中，单光子源采用具有泊松分布的高度衰减激光脉冲，量子密码术协议采用BB 84和B92协议。
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