“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	method of parallel translation method of parameter introduction method of partial fractions method of partial waves method of path coefficients method of peak area measurement method of peak height measurement method of peak value measurement method of penalty functions method of persuasion education method of phase diagrams method of phase integral method of pivot selection method of planting method of point mappings method of point sources method of position evaluation method of postulation method of potentials method of power series method of preventing water burst method of principal axes method of principal components method of prolongation method of proportional distribution problem in ancient China

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。