“机械抽样”的概念、定义、翻译、参考文献-科学参考

单词	机械抽样
释义	机械抽样 Encyclopedia 农学抽样调查释 systematic sampling机械抽样把含有个单元的总体按一定顺序排列单元，然后随机确定并抽取起始单元，再按一套规则抽取其他样本单元组成样本，用以估计总体的抽样方法。又称系统随机抽样、规律性抽样。 Chemistry ＞分析化学＞化学计量学＞释义 mechanical sampling机械抽样
随便看	countable space countable subadditivity countable subset countable sum axiom countable superadditivity countable support iterated forcing countable system countable transitive model countable union countable-valued logic countable weight countably additive countably additive algebra countably additive class countably additive family countably additive function countably additive measure countably compact countably compact set countably compact space countably continuous operator countably equivalent sets countably generated module countably Hilbertian space countably infinite

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。