Last Updated：2025/11/27
Sentence
微視的岩相分析により、リプチナイト類が石炭層の薄層に濃集していることが明らかになった。
Quizzes for review
Micropetrographic analysis revealed that the liptinites were concentrated in thin layers within the coal seam.
See correct answer
Micropetrographic analysis revealed that the liptinites were concentrated in thin layers within the coal seam.
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