英语词汇“upper devonian”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	upper devonian
释义	Upper Devonian Upper Devonian [′əp·ər də′vō·nē·ən] (geology) The latest epoch of the Devonian period of geologic time, beginning about 365 million years ago.
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Upper Devonian