“early Cretaceous coal-accumulating period”的概念、定义、翻译、参考文献-科学参考

单词	early Cretaceous coal-accumulating period
释义	early Cretaceous coal-accumulating period Encyclopedia 理学聚煤期释 early Cretaceous coal-accumulating period早白垩聚煤期早白垩世有大量聚煤作用发生并形成有工业价值煤田的时期。
随便看	permutation pattern permutation pseudo-tensor permutation rank permutation relation permutation relationship permutation representation permutation representation of a group permutation rise permutation run permutation sequence permutation signature permutation symbol permutation symmetry permutation tensor permutation test permutation without repetition permutation with repetition permutation with restricted positions permutator permuted block design permuted code permuting relation permutohedron Perm’ Pernambuco Uprising

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