“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	Key Points of the Composition of the Essays for Imperial Civil Service Examinations key population for ecological restoration key poverty stricken counties key process area key process area, KPA key-process point of control key recovery key school system keyseat reamer Keyser keysets key sharing key shelterbelt development program in the "Three North" region，the Yangtze River basin and other river basins keys in conditional access system key size key space key space entropy key species key state-owned forest state-owned forest regions keystone keystone ecosystem keystone species keystone species of aquatic community key stream keystroke-level model

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