“yanchang coal measures”的概念、定义、翻译、参考文献-科学参考

单词	yanchang coal measures
释义	yanchang coal measures Encyclopedia 理学晚三叠世煤系释 yanchang coal measures延长煤系鄂尔多斯盆地中—上三叠统延长群含煤地层。
随便看	class of ideals class of interactive polynomial time class of interactive polynomial time, IP class of lattices class of manifolds class of mappings class of matrices class of models class of morphisms class of objects class of operators class of railway class of representations class of residues class of rings class of sets class of singularities class of smoothness class of spaces class of surfaces class of tailings pond class of the cubic class of transformations class of universal algebras class operator

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