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

单词	shanxi coal measures
释义	shanxi coal measures 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	invariant random variable invariant relation invariant representation invariant ring invariant series invariant set invariant sigma-field invariant solution invariant state invariant statistic invariant strategy invariant structure invariant subalgebra invariant subfield invariant subgroup invariant subgroup series invariant submanifold invariant subsemigroup invariant subset invariant subspace invariant subspace lattice invariant subspace problem invariant subspace theorem invariant surface invariant system

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