関連キーワード
Appliance, Architecture, Building, Canal, Concrete, Dam, Energy, Engineering, Environment, Feature, Flapping, Flood, Flowing, Gate, High, Iron, Level, Metal, Old, Protection, 鋼鉄, 高価い, 起きている, 牆壁, ウォーターゲート, 堰堤, floodgate, 黽勉, 風雲, 渠河, 技術, 水イメージ
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