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。
Regulations for safe management of radioactive wastes from the mining and milling of uranium and thorium ores
GB14585-1993铀、钍矿冶放射性废物安全管理技术规定
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.
一种软质、银白色、放射性四价金属元素，同位素用作核反应能源，见于钍矿和独居石沙中。
Determination of thorium in uranium ore concentrate by thorin photometric method
GB/T11848.11-1989铀矿石浓缩物中钍的测定钍试剂光度法
Research of Characteristic for Hg-Pb-Th Contents in Rare Earth Mine;
稀土矿中汞、铅、钍的含量特征研究
a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite.
一种放射性矿物，由硅酸钍组成，是钍的来源，见于粗糙的花岗岩中。
Sinuitaneous Determination of Uranium and Thorium with Caliscal Least Square Method;
经典最小二乘法同时测定铀矿石中铀和钍
A reddish-brown phosphate mineral containing rare-earth metals, (Ce, La, Y, Th)PO4, important as a source of cerium and thorium.
独居石一种含有稀土（铈、镧、钇、钍）的浅红褐色磷矿，分子式为PO4，它是铈和钍的重要来源
The Latest Investigation and Assessment on Thorium Lung Burden of the Thorium-containing Dust Exposed Miners of the Bayan Obo Rare-earth Iron Mine;
白云鄂博稀土铁共生矿矿工肺内钍活度调查与评价的最新结果
Methods for chemical analysis of iron ores--The thorium nitrate volumetric rnethod for the determination of fluorine content
GB/T6730.26-1986铁矿石化学分析方法硝酸钍容量法测定氟量
a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium.
一种红褐色矿物，含稀土金属，是钍和铈的主要来源。
Recovery and Treatment of Th from RE Ore of Baiyunebo Deposit by Liquid Membrane Emulsion Technology;
乳状液膜技术回收处理白云鄂博稀土矿中钍的研究
Study on the Joint Determination of Thorium and Rare Earth Eements in Sichuan Hydro-smelting Bastnasite;
四川氟碳铈矿湿法冶炼中钍及稀土的联测方法研究
An Investigation on the Possible Threshold between the Inhaled Thorium Dusts and Its Effects on Hepatic Functions of the Miners;
吸入钍尘对矿工肝功能影响是否存在阈值的研究
Determination of Rare Earth Elements and Thorium in RE-Nb-Ta Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry
电感耦合等离子体发射光谱法测定稀土铌钽矿中稀土元素和钍量
RADIOTHORIUM CONTAMINATION TENDENCY AND CONTROL MEASURE FOR BAOTOU STEEL FACTORY TAILING DAM
包钢尾矿坝周围土壤放射性钍污染趋势及其防治措施研究
A complex brownish-black mineral, UO2, forming the chief ore of uranium and containing variable amounts of radium, lead, thorium, and other elements.
沥青铀矿黑褐色的合成矿，UO2，主矿为铀，还包括不定数量的镭、铅、钍和其他元素
protactinium-231-thorium-230 dating
镤-231钍-230测年法