“Orosirian Period”的概念、定义、翻译、参考文献-科学参考

单词	Orosirian Period
释义	Orosirian Period Encyclopedia 理学造山纪释 Orosirian Period造山纪距今20.5亿～18亿年的地质时期。
随便看	left associative element left associator left atrium left auricle left balanced functor left balanced module Left Bank Group left-behind children left-behind elderly left-behind family left-behind wife left bimodule left brachiocephalic vein left bundle-branch block left cancellable element left cancellation left cancellation law left cancellative groupoid left cancellative semigroup left censored data left-censored data left chain ring left closed object left cofinality left cofinal set

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