“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	retinol retinol equivalent retinopathy of prematurity retinophora retinoscope retinoscopy retinula retinyl palmitate retinyl palmitate; vitamin A palmitate Retire retired servicemen medical insurance retired servicemen old-age insurance retirement retirement age retirement syndrome retirement system Retirement System for the Employees of Public Institutions Retiro Park retort retouching retrace retract retractable enclosure retractable undercarriage test retracted confession

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