leaf shale
... lamosite 湖成油页岩 leaf shale 片状页岩 lean oil shale 贫油页岩 ...
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片状角页岩 leptynolite
·2,447,543篇论文数据，部分数据来源于NoteExpress
桐柏吴城盆地五里堆组油页岩为棕黑色，质细而软，呈薄片状产出，平均含油率为6。
The oil shale of Wulidui Formation in the Wucheng Basin, Tongbai occurs as brown-black, thin and soft slices with an average oil yield up to 6.
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