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铀系年代测定
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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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rural handicraftsmen
rural highway
rural history
rural hollowing
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rural household
rural household appliances earthing protection
rural household biogas
rural household concurrent behavior
rural household contract responsibility system
rural household economic organization
rural household interaction network
rural household investing behavior
rural household livelihood
rural household production management
rural household professional organization
rural household self-directed development capacity
rural household strategic choices of activity space
rural household survey
rural human resources
rural human settlement improvement
rural human settlements
rural hydro electric power
rural improvement planning
rural inclusive finance
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