“目标式抽样”的概念、定义、翻译、参考文献-科学参考

单词	目标式抽样
释义	目标式抽样 Encyclopedia 理学【基本概念】释 purposive of judgmental sampling目标式抽样研究人员在初步了解调查对象某些信息的基础上，依靠自己的判断，选择能够为研究问题提供最大信息量的研究对象的一种非概率抽样。又称目的抽样、立意抽样、专家抽样。
随便看	Iron Smelting and Making Site at Guyingzhen Iron Smelting and Making Site at Tieshenggou Iron Smelting and Making Site of Han Dynasty Iron Soldier Iron Square Measure ‘Sheng’ of the Home Ministry iron star iron statues in Song Dynasty iron sulfate iron sulfate heptahydrate iron sulfides iron-sulfur centre iron-sulfur protein iron sword in Spring and Autumn Period,Lingtai Iron Sword with Jade Handle of Guo State iron telluride iron triangle iron trichloride Iron Weapons from Han Dynasty Tomb at Mancheng Iron Weight of the Wuping Reign irony iron(Ⅱ,Ⅲ) oxide Iroquois IRPA IRPS IRR

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。