標題: ASTM C 1131-1995 混凝土涵洞,雨水溝,排污溝系統(tǒng)的最低成本(使... [打印本頁] 作者: 兌水 時間: 2009-9-21 08:21 標題: ASTM C 1131-1995 混凝土涵洞,雨水溝,排污溝系統(tǒng)的最低成本(使... C1131-95(2000) Standard Practice for Least Cost (Life Cycle) Analysis of Concrete Culvert, Storm Sewer, and Sanitary Sewer Systems