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单词 open-pit
释义

WordReference Random House Unabridged Dictionary of American English © 2024
o•pen-pit  pən pit′),USA pronunciation adj. [Mining.]
  1. Miningnoting or pertaining to a type of surface mining in which massive, usually metallic mineral deposits are removed by cutting benches in the walls of a broad, deep funnel-shaped excavation.
  • 1910–15

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更新时间:2025/7/23 19:10:20