英语词汇“Precambrian”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	Precambrian
释义	Pre·cam·bri·an (prē-kămbrē-ən, -kām-) adj. Of, relating to, or being the geologic time period between Hadean Time and the Cambrian Period, often subdivided into the Archean and Proterozoic Eras, comprising most of the earth's history and marked by the appearance of primitive forms of life. See Table at geologic time. n. The Precambrian Eon.
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