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铀钍-铅法定年
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铀钍-铅法定年
根据放射成因铅同位素与放射性铀或钍的比值测定地质和天体物质形成年代的方法。是铀-铅法和钍-铅法定年的统称。
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infinite covering
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infinite decimal
infinite decimal expansion
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infinite-dimensional Lie group
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infinite dimensional representation of a Lie group
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