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单词 drawhole
释义

WordReference Random House Unabridged Dictionary of American English © 2024
draw•hole  (drôhōl′),USA pronunciation n. [Mining.]
  1. Mininga funnel-shaped vertical opening cut at the bottom of a stope, which permits the loading of ore into conveyances in the passageways below. Also called glory hole, mill hole. 
  • draw + hole

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更新时间:2025/7/23 17:38:08