stratified sampling

常见例句

Methods:The stratified sampling and cluster random sampling methods are used in this survey.
方法：本研究采用分层随机抽样方法和整群随机抽样方法。
The survey was completed on the basis of combining stratified sampling and random sampling, collecting 1005 valid samples in total.
调查在分层逐级抽样法与随机抽样法相结合的抽样基础完成，共收集有效样本1005个。
Considering the methods employed on site and the implement used for drawing the samples, normally quantity interval, time interval or stratified sampling method shall be used.
应根据现场作业方式、取样设施配备情况选定，一般采用定量取样、定时取样或分层取样等方式。
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