A section of a waterway, such as a canal, closed off with gates, in which vessels in transit are raised or lowered by raising or lowering the water level of that section. 水閘用門關住的水道的一部分，如運河。其中通過升高或降低這部分的水位可以抬升或壓低運輸中的船隻
A movable structure used to close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates. 門一種用於關閉入口活動裝置，典型的由一塊板上有鉸鏈轉動或為拉動式或為旋轉式的組合
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