“目录抽样”的概念、定义、翻译、参考文献-科学参考

单词	目录抽样
释义	目录抽样 Encyclopedia 理学抽样调查释 list sampling目录抽样一种不等概率、不等比例的抽样调查方法，对达到一定规模以上的单元进行全面调查，对规模以下的单元按一定比例抽取一部分样本进行观察和推断。
随便看	tree algorithm tree altar tree analysis method tree and tabular combined notation tree and tabular combined notation, TTCN tree approximation tree assortment Treebank tree bank treebank tree-based model tree breeding for wood improvement tree breeding procedure tree breeding zoning tree centroid tree class tree code tree-complete tree contraction technique tree culture tree decomposition tree decomposition and brambles tree depth tree diagram tree diagram approximation

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。