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单词
Quota Sampling
释义
Quota Sampling
Encyclopedia
理学
【核心概念】
释
Quota Sampling
配额抽样
调查人员将调查总体按一定标志分类或分层,确定各类(层)单位的样本数额,在配额内任意抽选样本单元的抽样方法。又称定额抽样。
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aerophotogrammetry
aerophotograph
aerophotography
aerophysics
aeroplane
Aeroplane and Armament Experimental Establishment
aeroprojector
aeropulse
aero-radiator
aeroscope
aeroseb HC
aeroseb-HC
aerosiderite
aerosiderolite
aerosimplex
aerosol
aerosol absorption
aerosol analysis
aerosol and smoke generation
aerosol chemistry
aerosol complex refractive index
aerosol filter sampler
aerosol fire extinguishing system
aerosol optical properties instrument
aerosol particle size distribution measuring instrument
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更新时间:2026/7/14 4:04:18