“氩-氩年代测定”的概念、定义、翻译、参考文献-科学参考

单词	氩-氩年代测定
释义	氩-氩年代测定 Encyclopedia 理学核分析技术释 argon-argon dating氩-氩年代测定利用中子活化法使样品中的39K经过39K(n,p)39Ar反应转化为39Ar，然后用质谱计测定其40Ar/39Ar的比值，代替通常在钾-氩法中的40Ar/40K比值，计算岩石或矿物的地质年龄。
随便看	E-government data element representation specification e-government data element standard e-government digital signature E-government/electronic government e-government evaluation criteria E-government extranet E-government in Australia E-government information classification e-government information security system E-government information system audit management E-government in Korea E-Government in Singapore E-government intranet E-government laws and regulations E-government management standard E-government network technology e-government organization of China e-government performance evaluation E-Government Policy Framework for Electronic Records Management E-government private network E-government Process Change E-government project implementation E-government project management E-government project operation and maintenance e-government project supervision

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