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裂变径迹法定年
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裂变径迹法定年
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裂变径迹法定年
根据对原子核裂变碎片在非导体(如天然硅酸盐矿物和天然玻璃)中留下的辐射损伤痕迹的密度和形态等的测量测定地质年龄的方法。
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Umweganregung
Umweganregung(德)
un-
unabridged
unabridged dictionary
Unaccusativity Hypothesis
unactivated
unadjusted
unadjusted coefficient
unadjusted data
unadjusted eye
unadjusted sample moment
unaffected creation of one's own accord
unaffected equation
unaflow
Unagi
unaided eye
unaligned sampling
unalloayed steels for automobiles
unallocated space
unalloyed building structure steels
unalloyed cast steel
unalloyed cold-heading and cold-extruding steels
unalloyed free-cutting steel
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