• Cannel coal is dull black.

    呈暗黑色。

    youdao

  • The hydrocarbon generating assemblage can be divided into two types of cannel boghead deep lake mudstone and humic coal cannel coal shallow lake mudstone in this basin.

    组合分为泥岩腐殖烛煤湖相泥岩两种类型

    youdao

  • The hydrocarbon generating assemblage can be divided into two types of cannel boghead deep lake mudstone and humic coal cannel coal shallow lake mudstone in this basin.

    组合分为泥岩腐殖烛煤湖相泥岩两种类型

    youdao

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