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關於gritstone的百科

gritstone造句怎麼寫

  • gritstone造句怎麼寫

  • Thegreyishgreengritstonehadundergonetheactionofdeep-seatedreducingheatfluidduringitsrock-formingprocess.Acidicaggregatesuchasgneiss,graniteandgritstonecannotbewildlyusedinroadconstructionbecauseofthepooradhesiontoasphalt....
  • 20194

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