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单词 luff tackle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
luff tack′le, [Naut.]
  1. Nautical, Naval Termsa tackle having a double block and a single block, giving a mechanical advantage of three or four, neglecting friction, depending on which is the standing and which is the running block. See diag. under tackle. 
  • 1690–1700

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