... sampling unit 释义：取样单元,取样单位 sampling distribution 释义：样本分布,取样分布 air sampler 释义：空气采样器,空气取样器 ...
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随机取样分布 random sampling distribution
取样正态分布 sampling normal distribution
采矿场取样品位分布图 [矿业] stope assay plan
不利的一面，您发现 PHP 对于取样分布缺乏内在手段，而这是实现大多数统计测试所必需的。
On a negative note, you discovered that PHP has no native access to sampling distributions, which is a requirement for implementing most statistical tests.
SQS使用基于加权随机分布的消息取样，在查询消息时，它只从取样的一部分服务器返回消息。
SQS USES message sampling based on weighted random distribution, and it returns messages only from the sampled subset of servers when you query for messages.
根据竹螟幼虫分布的特点，确定了不同密度下的最适抽样数、序贯抽样的应用和调查取样方法。
The optimum sampling number, the sequential sampling application and the sampling method at different densities were determined based on the characteristics of the larva's distribution.
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