样例 取样

sample  detail>>

按比例取样

proportional sampling  detail>>

比例取样

proportional sampling  detail>>

比例取样法

proportional bag sampling proportional smapling  detail>>

比例取样器

proportional sampler proportional sampling device  detail>>

按比例取样器

proportional sam pling device proportional sampling device  detail>>

按流量比例取样

flow proportional sample  detail>>

概率比例取样法

probability proportional sampling  detail>>

样例

sample  detail>>

封面样例

sample cover page  detail>>

取样

sample; sampling  短语和例子   取样检查 take a sample to check; take a sample for examina...  detail>>

搜索区下面的样例表单

fill out example form  detail>>

取样管；取样器

sampling probe  detail>>

取样器；取样

thief  detail>>

“空壳”取样

ghost sampling  detail>>

不取样

unsampling  detail>>

采样；取样

sampling  detail>>

抽取样

running sample thief sample  detail>>