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photogen

/'fәutәudʒәn/

📖 中文释义

  1. [矿]页岩煤油
📘 English Definition（英文释义）
  1. n. A light hydrocarbon oil resembling kerosene. It is
  2. obtained by distilling coal, paraffin, etc., and is used as a
  3. lubricant, illuminant, etc.
P 字母词表