“分级随机抽样法”的概念、定义、翻译、参考文献-科学参考

单词	分级随机抽样法
释义	分级随机抽样法 Encyclopedia 农学分级随机抽样法释 multi-stage random sampling分级随机抽样法将总体看为不同级别大小的抽样单元组成，然后对不同级别的抽样单元分级进行随机抽样的方法。又称多级随机抽样法、多阶段随机抽样法、巢式随机抽样法。
随便看	respiratory quotient respiratory rate respiratory rhythm respiratory root respiratory supplementation and draining method respiratory syncytial virus respiratory syncytial virus (RSV) infection respiratory syncytial virus，RSV respiratory system respiratory system of domestic animals respiratory system of poultry respiratory system toxicity respiratory tract respiratory tract flora respiratory tract injury caused by military aerosol respirometer respite care resplicing responder responding function response response-adaptive randomization response addition response classification response curve

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。