Samples drawing by the sampling techniques of Permanent Random Numbers (PRNs) have good characteristic of sample coordination.
采用永久随机数法抽样技术抽到的样本具有很好地样本兼容的性质。
Its main theoretical base is the law of large Numbers in the theory of probability, whose main means is the sampling of random variable.
它的主要理论基础是概率论中的大数定理，其主要手段是随机变量的抽样。
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