DAM「姉川ダム」
2016.08.25 13:26
2013/06/01 A gravity concrete dam.
The roller gate 1 gate.
The jet flow gate 1 gate.
The orifice 1 gate.
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2013/06/01 A gravity concrete dam.
The roller gate 1 gate.
The jet flow gate 1 gate.
The orifice 1 gate.