... thorium lead age 钍 铅法测得的年龄 thorium lead 钍铅 thorium monocarbide 一碳化钍 ...
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thorium-lead age method 钍铅年代测定法 ; 钍铅测年法
thorium-lead dating method 钍铅定年法
isotopic thorium-lead method 同位素钍铅法
thorium-lead age 钍铅法测定的年龄
thorium-lead method 钍铅法
·2,447,543篇论文数据，部分数据来源于NoteExpress
The crust granites have higher lead isotope ratios and are richer in uranium lead but poorer in thorium lead.
壳型花岗岩具较高的铅同位素比值和富铀铅贫钍铅的特点；
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