“spiral sampling design”的概念、定义、翻译、参考文献-科学参考

单词	spiral sampling design
释义	spiral sampling design Encyclopedia 理学【基本概念】释 spiral sampling design螺旋式矩阵抽样将施测目标中的项目螺旋循环往复式指派给群体内的个体的抽样方法。
随便看	internal alchemy internal aluminide coatings Internal Analysis internal angle internal angle bisector internal anti-corrosion technology for pipeline internal attribution internal auditing internal balance type thermostatic expansion valve internal bisector internal bisectors problem internal bond strength internal boundary internal boundary conditions internal boundary layer internal branch internal budding internal calibration internal calibration method internal capsule internal carbon reference internal cast internal cause internal center of similitude internal cerebral vein

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。