“minable coal-bearing coefficient”的概念、定义、翻译、参考文献-科学参考

单词	minable coal-bearing coefficient
释义	minable coal-bearing coefficient Encyclopedia 理学煤炭地质勘查释 minable coal-bearing coefficient可采含煤系数可采煤层总厚度与含煤岩系总厚度之比。
随便看	ORCID OR curve Orcus ORD Ordained ordaitopsida ORDBMS ordeal orde disorder transformation order orderability orderable orderable field orderable group orderable semigroup orderable set order Acorales order and inorder order Arecales order Asparagales order at a point order automorphism order axiom order based training order book

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