What possible sources of bias might have been introduced into the study by using this method of sampling.
由于使用该样本收集方法，该项研究有可能存在的偏见来源有哪些？
In communications and transportation circumstances survey, the method of sampling survey was used regularly.
在交通运输情况调查中，经常采用抽样调查的方法。
In this paper, the problem about information value is proposed, evaluation method of sampling information value is given.
本文提出了信息价值的问题，并给出了抽样信息价值的评价方法。
In the aspect of defect inspection, according to the defect character of industrial printing image, a defect inspecting method of sampling and layering based on resolution technology is introduced.
在缺陷检测方面，根据工业印刷品图像中的缺陷特性，基于多分辨率技术提出了一种隔点抽样分层检测图像质量的方法。
Zinc and zinc alloys. Method of sampling. Specifications.
锌和锌合金。取样方法。规范。
Zinc and zinc alloys. Method of sampling. Specifications.
锌和锌合金。取样方法。规范。
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