danks
... dank潮湿 danks黑色炭质页岩 dansite=d'Ansite氯镁芒硝 ...
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灰黑色油页岩及黑色炭质页岩是侏罗系中的优质烃源岩。
Gray-black oil shale and black charcoal shale were high quality source rocks in Jurassic system comparatively.
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