英语词汇“magnetic epoch”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	magnetic epoch
释义	magnetic epoch magnetic epoch n (Geological Science) geology a geologically long period of time during which the magnetic field of the earth retains the same polarity. The magnetic field may reverse during such a period for a geologically short period of time (a magnetic event)
随便看	operational bioinstrumentation system operational board of directors operational briefing support system operational building access and security systems operational calculus operational camouflage pattern operational capabilities acceptance test operational capabilities benchmark demonstration operational capabilities objective operational capability operational capability area operational capability demonstration operational capability improvement request operational capability report operational capability requirements operational capability update operational carrier number operational case study operational cash flow per share operational casualty operational cell operational cg operational chain of command operational change management operational change memorandum

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