随机: random stochastic; random概率抽样: probability sampling非概率抽样: non probability sampling; non-probability sample; nonprobability samples概率抽样: probabilistic sampling; probability sampling; sampling probability不等概率抽样: sampling with unequal probability分层概率抽样法: stratifiedprobabilitysampling非随机概率样本: non-random probability sample频率抽样: frequency sampling停机概率: ausfallwahrscheinlichkeit failure probability频率抽样定理: frequency sampling theorem合格率抽样系统: acceptance samplingsystem频率抽样均衡器: frequency sampling equalizer频率抽样滤波器: frequency sampling filters拟随机抽样: quasi random sampling; quasi-random sampling随机抽样: random sample; random sampling; random selected; random selection; randomsampling; sampling at random; sampling random; stochastic sampling随机抽样法: method of random sampling; random sampling method; technique of random sampling随机化抽样: randomized sampling概率比例抽样: probability proportional sampling随机抽样，随机采样: random sampling单纯随机抽样: simple random sampling单次随机抽样: single random sampling非随机抽样法: nonrandom sampling分层随机抽样: stratified random sampling分段随机抽样: random sampling; stage sampling分类随机抽样: random sampling by classification
