| 单词 | grapnel |
| 释义 | grapnel [`grap·nǝl] DESIGN ENGINEERING An implement with claws used to recover a lost core, drill fittings, and junk from a borehole or for other grappling operations. Also known as grapple. NAVAL ARCHITECTURE An anchor with four or five hooks used for dragging the bottom or for anchorage. |
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