“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	grapher graph excision graph expansion graph factor graph genus graph geodesic graph grammar graph hole graph homeomorphism Graphic graphic graphical graphical calculation graphical design graphical differentiation Graphical Environmental Design graphical equality graphical example graphical expansion graphical expression graphical input language graphical integration graphical language graphical matroid graphical mechanics

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。