“Quota Sampling”的概念、定义、翻译、参考文献-科学参考

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。
随便看	ancient mathematics Ancient Melody of Spring Sunlight Ancient Mesopotamian Culture ancient method of canal construction ancient mixed cropping system ancient multiple cropping system Ancient Nuremberg Ancient Observatory ancient opera education ancient organism ancient oriental political systems Ancient Osmanthus of Dayu Palace in Ningqiang ancient paper of the Western Han Dynasty ancient Persian law ancient Persian medicine Ancient Phoebe of Puzhao Temple in Dujiangyan City ancient Phoebe zhennan S. Lee in Ya’an City Ancient Plum and Marvelous Stone Parterre in Wuxi Ancient poetics of the Yi People Ancient Polynesia Cultures Ancient Post Road at Jingxing Ancient Pottery Culture Museum ancient pressure processing technology ancient project of Huaihe River into the Sea and the Yangtze River Ancient Prose, Collected and Interpreted

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。