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单词
snowball sampling
释义
snowball sampling
Encyclopedia
理学
【基本概念】
释
snowball sampling
滚雪球式抽样
利用若干原始样本提供的信息来获取更多样本,并且以相同方式不断增加样本,直到样本数量达到研究要求的抽样方法。又称链式抽样、推荐抽样。
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preflying experience
prefocusing
preformation theory
preformed billet
prefractal
prefractionator
preframe
prefrontal cortex
pre-galactic cloud
pre-galactic nucleosynthesis
pre-galactic star
pre-Galaxy
pre-galaxy
preganglionic neurofibre
preganglionic neuron
pregelatinized starch
pre-geometry
pregermlayer stage
P-region
preglabellar field
pre-glottalization
pregnancy
pregnancy anabolism
pregnancy-associated thrombocytopenia
pregnancy diagnosis
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