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单词
footwall
释义
WordReference Random House Unabridged Dictionary of American English © 2024
foot•wall
(fŏŏt
′
wôl′),
USA pronunciation
n.
Mining
the top of the rock stratum underlying a vein or bed of ore. Cf.
hanging wall
(def. 1).
Geology
a mass of rock lying beneath a fault plane.
foot
+
wall
1640–50
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更新时间:2025/11/7 15:21:51