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单词 plug and feathers
释义

WordReference Random House Unabridged Dictionary of American English © 2024
plug and feathers, 
  1. Buildingan apparatus for splitting stone, consisting of two tapered bars (feathers,) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
  • 1835–45

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更新时间:2025/7/23 18:23:32