| 摘要 |
A boat anchor (10) includes three runners (11, 12, 13) having respective rear spikes (18, 19, 20) and front spikes (22, 23) for penetrating bottom material such as hard sand or mud. A bail (30) rolls the anchor onto the hooks. Flukes (32-36) are positioned on the runners (11, 12, 13) and induce drag through the bottom material which limits the movement of the anchor.
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