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单词 impactite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
im•pact•ite  (im paktīt, impak tīt′),USA pronunciation n. 
  1. Mineralogya glassy or crystalline material composed of slag and meteoric materials, produced by the impact of a meteorite striking the earth.
  • impact + -ite1 1935–40

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