Dx-20a flood control water absorption expansion bag can replace flood control sandbag

  Dx-20a flood control water absorption expansion bag can replace flood control sandbag
Development, popularization and application of water absorbing expansion bag
　　1
With the gradual improvement of the construction of the Yellow River flood control project, the problems and weak links of the Yellow River flood control project have attracted more and more attention, especially the impact of clear water discharge on the downstream flood control project after the operation of the new Xiaolangdi water control project