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isotopic chrono1ogy
释义
isotopic chrono1ogy
Encyclopedia
工学
同位素年代学
释
isotopic chrono1ogy
同位素年代学
依据放射性衰变定律,通过测定自然界样品中放射性核素及其衰变产物稳定子体含量,或者利用放射性射线和裂变碎片对周围物质作用产生的核效应及其影响程度,计算岩石、矿物或其他物质形成事件的年龄,研究地球和太阳系星球演化时间序列的学科。
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pure welfare model of social services
PUREX流程
pure yang
Purgation
purgative method
purgatives
purgative,cathartic
Purgatory
purgatory
purge and trap
purge and trap (PAT)
purge stack
purging
purging technique
purification
purification and rejuvenation of grass varieties
purification by manipulating the mouse embryo
purification by vacuum vaporization
purification coefficient
purification factor
purification for fraction
purification impurity of tungsten concentrate
purification machine
purification of bioleaching solution
purification of coarse sodium tungstate solution
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