“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	underdevelopment underdoped regime underdoping underdot underestimate algorithm underexposure underfitting underfloor air distribution underflow underflow tube under fly underfocus under-forest economy under fur underglaze blue underglaze dark blue glaze underglaze dark blue glazed underglaze decoration underglaze red undergoing professional training at an old-type opera school undergraduate education undergraduate education of pratacultural science Undergraduate Specialty Catalogue of Higher Education Institution Underground underground anchor rig

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。