“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	presentation of a group presentation of length n presentative Present-Day Tasks of Language Reform Present-Day Tasks of Language Reform and Chinese Phonetic System Presented School Regulation Presented to Cao Biao, Prince of Baima presenteeism pre-sentence inspection present-focus presentive Presentness present value present value of bond present weather measurement instrument preservation preservation and conservationProject for China’s ancient books Preservation and Conservation Project of Materials in Minguo Period (1911～1949) preservation and conservation standards preservation and long-term access through networked services Preservation and Restoration of ancient wooden and bamboo Lacquer crafts preservation and restoration of collection stone cultural relics Preservation and Restoration of Oil Paintings preservation class preservation disaster plan

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。