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单词 pyroclastic
释义

WordReference Random House Unabridged Dictionary of American English © 2024
py•ro•clas•tic  (pī′rə klastik),USA pronunciation adj. [Geol.]
  1. Geologycomposed chiefly of fragments of volcanic origin, as agglomerate, tuff, and certain other rocks;
    volcaniclastic.
  • pyro- + clastic 1885–90

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