• Noun

    Nautical . a drain at the edge of a deck exposed to the weather, for allowing accumulated water to drain away into the sea or into the bilges. Compare freeing port .
    a drain, closed by one or two flaps, for allowing water from the sprinkler system of a factory or the like to run off a floor of the building to the exterior.
    any opening in the side of a building, as in a parapet, for draining off rain water.

    tác giả


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