英语词汇“secondary sampling unit”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	secondary sampling unit
释义	secondary sampling unit 英?[?sek?nd?ri ?s?mpl?? ?ju:nit] 美?[?s?k?n?d?ri ?s?mpl?? ?jun?t] 释义二次抽样单位，二极抽样单位
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英汉翻译词典包含4367426条英汉汉英翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习的有利工具。