陸りっ閘こう

noun

land lock; floodwall gate

Technical term for a gate in a floodwall or levee that allows passage when closed, used in flood control and coastal protection.

• この地ち域いきの陸りっ閘こうは、高たか潮しおの際さいに閉しめられる。

  The land lock in this area is closed during storm surges.

• 陸りっ閘こうの操そう作さには訓くん練れんが必ひつ要ようだ。

  Operating the floodwall gate requires training.