“πPS sampling”的概念、定义、翻译、参考文献-科学参考

单词	πPS sampling
释义	πPS sampling Encyclopedia 理学数据收集模式释 πPS samplingπPS抽样一种样本量固定，且每个单元的包含概率与其规模成比例的不放回不等概抽样。
随便看	data validity data value density data visualization data warehouse data warehouse analysis data warehouse based decision support system data warehouse, DW data warehouse management data warehouse management system data warehouse，DW data wiping date line date over cable service interface specification date palm Da Tian Datian Xian datin dating dating examination of questioned document dating method dating method of Chinese rock paintings dating of groundwater dating with extinct radionuclides dative bond dative valence

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