uranium-series

基本解释

Uranium mineralizations are hosted in the Middle-Lower Jurassic coal-bearing series.
下侏罗统含煤系是铀矿化赋存的有利部位。
The uranium ore-formation processes in the deposit are traced effectively by U series disequilibrium.
铀系不平衡特征还示踪了该矿床的成矿作用过程。
The Longchuanjiang basin is one of the main uranium-hosting basin in western Yunnan, and a series of sandstone-type uranium deposits have been explored up to now.
龙川江盆地是滇西主要的铀矿赋矿盆地之一，现已探明一批砂岩型铀矿床。

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.
WHITEHOUSE: Press Briefing
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.
NEWYORKER: Preparing the Battlefield

a radioactive series that starts with uranium-238 and proceeds by radioactive decay to lead-206