one-stage sampling一: one阶段: stage; phase; period; gradat ...抽样: sample; sampling; specimen; ...多阶段抽样: multi-stage sampling多阶段抽样法: multi-stage sampling下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:一阶段抽样，即可在微信中查询翻译
