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单词 wall rock
释义

wall rock


noun Mining.

the rock forming the walls of a vein.

Origin of wall rock

An Americanism dating back to 1855–60

Words nearby wall rock

wall pellitory, wall pepper, wall plate, wall plug, wallposter, wall rock, wall rocket, wall rue, Wallsend, Walls have ears, Wall Street
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for wall rock

  • In narrow lodes, some of the wall-rock must be cut away to get room for the workmen.

    Hittel on Gold Mines and Mining|John S. Hittell

British Dictionary definitions for wall rock

wall rock

noun

rock that is immediately adjacent to a mineral vein, fault, or igneous intrusion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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更新时间:2025/1/24 8:52:19