英语词汇“lower permian”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	lower permian
释义	Lower Permian Lower Permian [′lō·ər ′pər·mē·ən] (geology) The earliest epoch of the Permian period of geologic time, extending from about 275- to 260,000,000 years ago.
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Lower Permian