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.
水闸用门关住的水道的一部分，如运河。其中通过升高或降低这部分的水位可以抬升或压低运输中的船只
A movable structure used to close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates.
