“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	powder characterization powder coating powder coating methods powder compacting powder crystal powder diffraction file powder diffractometer powder dividing doses powder down powdered activated carbon powdered activated carbon treatment process powdered drink powdered rubber powder extrusion molding powder feed rate of metal melting deposition powder fertilizers machinery powder fire extinguishing agent powder for coating powder for dry seed treatment powder forging powder forming powder identification powder impetus powdering powder injection molding

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。