[统计] 两段最小平方法 two-stage least-square method: 二阶段最小二乘方法truncated two-stage least square: 截尾二阶段最小平方法method of two stage least squares: 两段最小平方法two-stage least squares method: 两阶段最小平方法two stage least squares: 二段最小平方法下载手机词典可随时随地查词查翻译