2. trap silt fence (Figure 1b): using the fence traps sediments with 1.5-2 meters height taken up inside the gated barrier waves. Away from the coast for about 20-25 meters, which sank in the deep mud, the fence is 2-NN2D5 meters, placing it next to the other pole and a 2-5 cm apart the adjacent mast arranged as 1.5 meters high, 1.2 meters long, Thai xylophone and uses a wooden towers 76 entire front and back of the row.
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