英语词汇“magnetic reversal”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	magnetic reversal
释义	magnetic reversal magnetic reversal n.1. A change in the polarity of a magnetic field in which magnetic north and south are reversed.2. See geomagnetic reversal. magnetic reversal magnetic reversal [mag′ned·ik ri′vər·səl] (geophysics) A reversal of the polarity of the earth's magnetic field that has occurred at about one-million-year intervals.
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