“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	scalar curvature of space-time scalar curvature of spacetime scalar density scalar diffraction theory scalar dissipation rate scalar electrodynamics scalar electron scalar electron, selectron scalar equation scalar extension scalar extension of algebras scalar field scalar field visualization scalar fluctuation scalar flux scalar function scalar functional scalar horn scalariform conjugation scalariform perforation scalariform thickening scalariform vessel scalar integral scalar invariant scalarization

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。