地下给水管网管线间距计算及优化布局

西安科技大学硕士学位论文地下给水管网管线间距计算及优化布局姓名：林淑飞申请学位级别：硕士专业：计算机应用技术指导教师：李军民20060418PPR://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://://全球通塑管供应专家本文由【全球塑管供应专家】编辑整理产品规格(mm)长度尺寸(米)单价(元/米)包装定量（米）PN1.25Mpa冷水管25×2.348.512032×2.9413.36040×3.7419.804050×4.6431.802863×5.8449.802075×6.8470.001290×8.2498.804110×10.04146.004PN1.6Mpa冷水管20×2.346.5016025×2.849.8012032×3.6415.806040×4.54234050×5.64382863×7.14632075×8.44921290×10.141334110×12.342034PN2.0Mpa热水管20×2.84816025×3.5412.812032×4.4419.57240×5.5430.84050×6.9449.52863×8.64771675×10.3412812PPR全球通塑管供应专家本文由【全球塑管供应专家】编辑整理90×12.341694110×15.142564PN2.5Mpa热水管20×3.4410.616025×4.2415.812032×5.4425.87240×6.74404050×8.34652863×10.541122075×12.541391290×1542004110×18.342984产品实样品