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isotopic chrono1ogy
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isotopic chrono1ogy
Encyclopedia
工学
同位素年代学
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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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time and frequency service
time and frequency signal
time and frequency synchronization
time and frequency transfer
time and frequency transfer via optical fiber
time and space
time and space crisscross
time and space problem
time and spatial art
Time Arts
time aspect of stage
time average
time-averaged holography
time-averaged interferometry
time average holographic interference
time average measurement
time average method
time averaging
time averaging method
time axis
time balance
time-bandwidth product
time base
time-base
time-base instability
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