thorium concentrate是什么意思

网络释义

用法例句

Three aspects on thorium deposits are discussed: distribution of thorium in different geological bodies and its geochemical evolution features, the classification of global thorium deposits, the ore-formation of three types of important thorium deposits.

对钍在不同地质体中的分布及钍的地球化学演化特征进行了分析；简要概括了世界钍矿床分类，对三类重要钍矿床的成矿作用进行了综述；以钍矿床成矿特征与铀矿床作对比，提出钍矿成矿地质特征，以及钍成矿的特殊性和钍矿床勘查的地质依据，并提出中国钍矿资源勘查对策和发展前景。

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