variable sampling 变量抽样...accumulative sampling 聚集取样...sampling 抽样;采样取样取样,采样,抽样...sampling survey 抽样调查...gas sampling tube 气体取样管...gas sampling valve 气体进样阀...zonal sampling 区域抽样...Whittaker-Shannon sampling theorem 维特克-香农抽样定理...acceptance sampling 验收抽样;验收取样验收抽样...ladle sampling 浇桶取样...average sampling 进口货指定检查...production sampling tests 产品抽样测试...judgement sampling 判定性抽样(检查)...isokinetic sampling 等动力学取样...unrestricted random sampling 无约束遂机抽样...systematic sampling 系统抽样系统抽样系统抽样法...normal theory applied to sampling method 用于抽样法的正态理论...item by item sequential sampling plan 逐项连续取样法...frequency-sampling 频率取样...cross-sectional sampling of oil 从油罐内各层采取石油样品...chilled sampling apparatus 冷冻的采样器...
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