two-stage sampling unit

英 [two-stage sampling unit]
美 [two-stage sampling unit]

中文释义

二段抽样单位

单词分析

单词结构：

two-stage sampling unit

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：two-stage sampling unit
  • 核心含义：二段抽样单位

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更新时间：2025-12-10 03:12:14