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铀系年代测定
释义
铀系年代测定
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uranium series dating
铀系年代测定
应用自然界放射性核素(铀钍系、不平衡铀系)衰变规律来确定各种地质对象年龄的一种同位素地质年代学方法,即通过测定样品中铀系衰变子体与母体的比值计算样品年龄,诸如采用传统α能谱与热电离质谱铀系技术(TIMS)进行U-Hh测年。
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Stieltjes
Stieltjes constant
Stieltjes integral
Stieltjes polynomial
Stieltjes series
Stieltjes theorem
Stieltjes transform
Stiemke
Stiemke theorem
Stifel
stiff
stiff bottle-brush
stiff differential equation
stiff differential system
stiffened plates and shells
stiffening
stiff equation
stiffly stable system
stiffness
stiffness analysis of structures
stiffness coefficient
stiffness coordination principle
stiffness finishing
stiffness matrix
stiffness method
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