“Lower Mississippian”的概念、定义、翻译、参考文献-科学参考

单词	Lower Mississippian
释义	Lower Mississippian [`lō·ǝr ´mis·ǝ`sip·ē·ǝn] ^GEOLOGY The earliest epoch of the Mississippian period of geologic time, beginning about 350,000,000 years ago.
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