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单词 oil shale
释义

WordReference Random House Unabridged Dictionary of American English © 2024
oil shale′, [Geol.]
  1. Geologya black or dark-brown shale or siltstone rich in bitumens, from which shale oil is obtained by destructive distillation.
  • 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
oil shale n
  1. a fine-grained shale containing oil, which can be extracted by heating
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