random cluster sample中文,random cluster sample的意思,random cluster sample翻译及用法

2026-03-22 05:15 浏览次数 18

random cluster sample

整群抽样

random cluster sample 例句

英汉例句

  • methods a random cluster sample of 1 757 preschool children were chosen. their blood lead level were examined and the influencing factors were surveyed.

    方法采用随机整群抽样方法,对武汉市1757名学龄前儿童进行血铅测定及影响因素调查。

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