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铀钍-铅法定年
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铀钍-铅法定年
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铀钍-铅法定年
根据放射成因铅同位素与放射性铀或钍的比值测定地质和天体物质形成年代的方法。是铀-铅法和钍-铅法定年的统称。
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Jade Plaque from Lingjiatan Site
jade portrait
Jade Pushou of the Han Dynasty
jade relics restoration
Jade Sad Book from two mausoleums of Southern Tang
jades caved by Lu Zigang
Jade Sculpture A Lady under the Tung Tree
Jade Sculpture of Dayu’s Flood Control
jade seal in the Qing Dynasty
Jade Seal of Prince Guangling
jade seal of "state bank" of the Soviet Republic of China
Jade set in gold
Jades from Beiyinyangying Culture
jades from Dadianzi Site
jades from Dayangzhou
jades from Ding Mausoleum
jades from Erlitou Site
jades from Han Tomb at Shizishan
jades from Haochuan Site
jades from Jinsha Site
jades from Jiuliandun Tomb
jades from Liangzhuangwnag's Tomb
Jades from Li Jingxun Tomb
jades from Rui State
jades from Shangcheng Site at Zhengzhou
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