“山西煤系”的概念、定义、翻译、参考文献-科学参考

单词	山西煤系
释义	山西煤系 Encyclopedia 理学二叠纪煤系释 shanxi coal measures山西煤系早—中二叠世时期山西组地层发育时期连续沉积形成的一套含有煤层并具有成因联系的沉积岩系。
随便看	homotopic manifold homotopic mapping homotopic morphism homotopic path homotopic resolution homotopic simplex homotopic to zero homotopism homotopy homotopy algorithm homotopy associative homotopy associative mapping homotopy associativity homotopy axiom homotopy boundary homotopy category homotopy chain homotopy characteristic homotopy class homotopy classification homotopy coherence homotopy coinverse homotopy-commutative homotopy-commutative diagram homotopy-commutative mapping

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。