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单词 footwall
释义

WordReference Random House Unabridged Dictionary of American English © 2024
foot•wall  (fŏŏtwôl′),USA pronunciation n. 
  1. Miningthe top of the rock stratum underlying a vein or bed of ore. Cf. hanging wall (def. 1).
  2. Geologya mass of rock lying beneath a fault plane.
  • foot + wall 1640–50

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更新时间:2024/11/11 13:55:14