| 摘要 |
An elongated buoy with protruding external ribs extending about the circumference of the buoy. The ribs are oriented substantially perpendicular to the longitudinal axis of the buoy and create turbulence when the buoy is dragged upon the surface of the water. The turbulence results in decreased drag and permits easier and faster retrieval of the buoy by a crew member hauling in by hand a line attached thereto.
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