| 摘要 |
A novel life-saving device comprising a buoyant disk having a top side, a bottom side, a leading edge and a cavity on the bottom side along and adjacent to the leading edge, the cavity having an inner side generally parallel to the leading edge the inner side having an upper edge and a lower edge and a length of line affixed through and about the center of the buoyant disk generally parallel to the leading edge and disposed around the inner side of the cavity.
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