“opportunistic sampling”的概念、定义、翻译、参考文献-科学参考

单词	opportunistic sampling
释义	opportunistic sampling Encyclopedia 理学【基本概念】释 opportunistic sampling机会抽样研究人员利用原有知识或经验来确定样本的一种非概率抽样方法。
随便看	axial trace axial turbine axial vector axial vector coupling axial-vector current axial-vector meson axial vector, pseudovector axial vector susceptibility axial-vector susceptibility axiator axicon AXIe bus test instruments AXIe总线测试仪器 axil axile placenta Axilla axillary axillary abscess axillary branch axillary choerospondias fruit axillofemoral artificial blood vessel grafting axinite axino axiological ethic axiom

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