uranium series

基本解釋

There are three naturally occurring radioactive series - the thorium series, the actinium series, and the uranium series.
有三個天然存在的放射系列，即釷系、錒系和鈾系。
Cave stalagmites, corals, lake sediments are suitable for dating using the thermal ionization mass spectrometry (TIMS)uranium series method.
巖溶石筍、海洋珊瑚、湖泊沉積物等信息載體可以用熱電離質(zhì)譜（TIMS）鈾系技術(shù)定年。
The time scale and intensity of the water rock interaction in a uranium deposit can be semi quantitatively assessed using uranium series disequilibrium.
某鈾礦床中水-巖反應的時間范圍和強度，可通過對鈾天然衰變系放射性不平衡的研究得到半定量化。

Without going into entirely boring detail, the Iranian plan for uranium enrichment depended on a series of high speed centrifuges.
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So in the security realm, again, the Chinese acknowledgment in the statements that -- of the North Korean uranium enrichment program, setting forth a series of conditions that made the Republic of Korea confident enough to go into talks with the North Koreans -- is certain -- I would say one in the security basket.
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The serious business was conducted out of sight, and involved a series of meetings on a new diplomatic effort to persuade the Iranians to halt their uranium-enrichment program. (Iran argues that its enrichment program is for civilian purposes and is legal under the Nuclear Non-Proliferation Treaty.) Secretary of State Rice had been involved with developing a new package of incentives.
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a radioactive series that starts with uranium-238 and proceeds by radioactive decay to lead-206