multistage analysis多: many; much; more阶段分析: phase analysis阶段分析: phase analysis; stage analysis同阶段分析: same level analysis多阶段抽样: 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:多阶段分析，即可在微信中查询翻译
