quota sampling
柯林斯词典
1. N a method of conducting marketing research in which the sample is selected according to a quota-system based on such factors as age, sex, social class, etc 配额抽样法[marketing]
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1. N a method of conducting marketing research in which the sample is selected according to a quota-system based on such factors as age, sex, social class, etc 配额抽样法[marketing]