sampleman样品的制作者[分配者, 试验者]samplen.样品；样本vt.采样；取样；品尝，体验sample dispersion样本方差,样本离差samples selection样本选取sample collecting样品采集Sample Selections样本选择偏差sample conariance样本协方差sample importance样本重要性sample irrigation样点灌区sample similarity样本相似性sample filtration样本筛选sample changement样品交换器