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["风管明细表"]
["系统类型","尺寸","长度","合计"]
[]
["回风","750x1600",1100,1]
["回风","1500x500",1913,2]
["排烟","800x1000",600,1]
["排烟","900x400",3083,6]
["排烟","1000x800",600,1]
["排烟","1300x500",11132,1]
["排烟","1500x500",19996,6]
["送风","250x250",20483,35]
["送风","400x160",66042,37]
["送风","500x200",24851,25]
["送风","600x300",6720,6]
["送风","750x750",1963,1]
["送风","800x300",7832,8]
["送风","800x400",5636,1]
["送风","1200x400",7932,1]
["送风","1500x500",8547,4]
["总计: 136",null,188432]