They reported the abnormal uranium content of waters issuing from tuffaceous rocks.
该理论认为，来自凝灰岩的地下水淋蚀铀。
The factors that result in large change of uranium content in different regions are also discussed.
并对各流域水体中铀含量存在差异的原因进行了讨论。
Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.
在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。
The U.S. Geological Survey (USGS) maintains an online database of fly ash-based uranium content for sites across the U.S..
美国地质调查局(usgs)拥有一个全美浮尘铀含量的在线数据库。
Uranium content in rock is positively correlative to soluble organics and acidolysis hydrocarbon by statistical count.
计算 表明：容矿层中铀和可溶有机物、酸解吸附烃含量之间具有明显的相关关系。
Some factors affecting the accuracy of uranium content determined by delayed neutron counting and methods to solve the problems are reported.
文章介绍了用缓发中子计数法测铀时遇到的一些影响测量结果准确度的因素和采用的解决办法。
The rationality of the conversion coefficient (K) formula affects the analytical quality of uranium content of the ore from underground mining and the sorting quality.
换算系数(K)的公式是否合理，直接影响出窿矿石铀含量的分析质量和矿石的分选质量。
This method is characterized by low determination limit, high precision, easy operation, high speed and wide range of determination being a ideal method for determining uranium content in ore samples.
该方法检出限低，精密度高，操作简单，分析速度快，测定范围宽，是测定铀含量的较理想的方法。
Consider Niger, where France is not content to simply extract uranium from the country while paying Third World prices;
看看尼日尔，在那里法国不满足于仅仅以第三世界的价格从该国萃取铀；
The moisture content distribution and relationship between moisture content and radon emanation rate on the tailings surface in Hengyang Uranium Mill are described.
描述了中国核工业集团公司衡阳铀厂尾矿库滩面的含水量分布，以及含水量与氡析出率的关系。
Thorium ore, uranium ore, or mixed ore of uranium and thorium In which the rate of content weight uranium and thorium is higher than five-ten thousandths.
一钍矿物、铀矿物或铀钍混合之矿物，其含有铀、钍之成份重量比在万分之五以上者。
Thorium ore, uranium ore, or mixed ore of uranium and thorium In which the rate of content weight uranium and thorium is higher than five-ten thousandths.
一钍矿物、铀矿物或铀钍混合之矿物，其含有铀、钍之成份重量比在万分之五以上者。
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