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词典释义:
quota sample
时间: 2024-05-20 18:47:23
英 [ˈkwəʊtə ˈsɑːmp(ə)l]
美 [ˈkwoʊdə ˈsæmpəl]

n. 按比例的抽样样品;定额样本;分组样本

双语例句
  • Methods: the sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.

    方法:样品用硝酸和高氯酸消化后,导入火焰原子吸收分光光度计中,与标准系列比较定量。

释义
n.

Statistics a sample taken from a stratified population by sampling until a pre-assigned quota in each stratum is represented

【统计】 按比例的抽样样品,定额样本,分组样本。

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