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isotopic chrono1ogy
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isotopic chrono1ogy
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工学
同位素年代学
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isotopic chrono1ogy
同位素年代学
依据放射性衰变定律,通过测定自然界样品中放射性核素及其衰变产物稳定子体含量,或者利用放射性射线和裂变碎片对周围物质作用产生的核效应及其影响程度,计算岩石、矿物或其他物质形成事件的年龄,研究地球和太阳系星球演化时间序列的学科。
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government controlled and supported artisans and merchants
government credit
Government credit management
government data exchange sharing platform
government data opening catalog standard
government data opening platform
government decision database
government decision support systems
government department business information systems
government department website
government deposits
government dial-up access
government digital data network
government digital subscriber line
government direct liabilities
Government emergency management
government emergency management systems
government failure
government failure in environmental protection
Government Failure Theory
government final consumption
government finance management information system
government financial statistics
government firewall technology
government Function
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更新时间:2025/12/16 17:17:54