Building water horizontal pipe and culvert connection, water port type selection of cable-stayed type of gate, culvert downstream water followed by open channel and culvert length of 81 meters.

Drain building with bedroom and covered by the way, connect the tube outlet type selected in the drop-down gate, covered by tube downstream followed by drainage, water-covered by the full-length 81 meters.

Turns on the water the building to use lies the way which the tube and the culvert pipe connect, the outlet pattern selects pulls the strobe type slanting, after the culvert pipe meets the downstream to turn on the water the open canal, the culvert pipe span 81 meters.

Water building a horizontal pipe and culvert connecting way, discharge of mouth shapes-selection of inclined gate, culvert pipe followed by a water channel in the lower, culvert is 81 metres long.

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