放水口 (ほうすいこう ほうすいくち) — waste-water port (of a dam, sewer, etc.); freeing port (on a ship)
放水口
Waste-water port (of a dam, sewer, etc.); freeing port (on a ship)
Water hose outlet (for firefighting)
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放水口 (ほうすいこう ほうすいくち) — waste-water port (of a dam, sewer, etc.); freeing port (on a ship)
