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multi-stage random sampling
释义
multi-stage random sampling
Encyclopedia
农学
分级随机抽样法
释
multi-stage random sampling
分级随机抽样法
将总体看为不同级别大小的抽样单元组成,然后对不同级别的抽样单元分级进行随机抽样的方法。又称多级随机抽样法、多阶段随机抽样法、巢式随机抽样法。
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irreversible oxidation
irreversible polarographic wave
irreversible process
irreversible reaction
irreversible superconductor
irreversible thermodynamics
IRRI
irrigation
irrigation amount of each event
irrigation and drainage experiment station
irrigation and drainage history of China
irrigation and drainage in China
irrigation and drainage project
irrigation and drainage pumping station
irrigation and drainage pump station planning
Irrigation and Drainage Regulations
Irrigation and Drainage Rules of the North Song Dynasty
irrigation and drainage station of electric engineering
irrigation and fertilization machinery
irrigation area
irrigation areas in China
irrigation canal system
irrigation date
irrigation development planning
irrigation district management organization
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