Study on the purification and properties of dibromo-o-nitro-arsenazo(DBONA)and the stability constant of its thorium complex;
二溴邻硝基偶氮胂的纯化、性质及其钍络合物的稳定常数
Determination of thorium dioxide in thorium-tungsten alloys--Weight method
GB/T3312-1982钨钍合金中二氧化钍的测定重量法
This is essentially a development of thoria dispersion strengthened nickel alloys.
这基本上是用二氧化钍弥散强度化的镍基合金。
Chemical compounds and mixtures containing uranium and thorium are active in direct proportion to the amount of these metals contained in them.
含铀和钍的化合物和混合物活跃的程度与这些化合物和混合物中这两种金属的含量直接相关。
Synthesis and Characterization of Uranium, Thorium and Raer Earth Complexes of Schiff Base;
铀、钍、稀土希夫碱配合物的合成与表征
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。
Studies on the Adsorptive Stripping Voltammetry of Sc (Ⅲ)、Th(Ⅳ) complexs;
钪（Ⅲ）、钍（Ⅳ）络合物的吸附伏安法研究
COMPLEX FORMATION OF Th(edta)CHELATE WITH SOME AMINO-ACIDS
乙二胺四乙酸根合钍与某些氨基酸的络合反应
Determination of Uranium and Thorium in Water by Inductively Coupled Plasm Mass Spectrometry
电感耦合等离子体质谱法测定水中铀、钍
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。
COMPLEXES OF Th(NO_3)_4·6H_2O AND UO_2(NO_3)_2 6H_2O WITH MACROCYCLIC POLYETHER 2,4-DI-KETO-16-CROWN-5 SYNTHESIS AND CHARACTERIZATION
硝酸钍及硝酸铀酰与2,4-二酮16-冠-5络合物的合成和性质
SYNTHESIS AND CHARACTERIZATIONS OF U(Ⅵ) AND Th(Ⅳ) COMPLEXES WITH TWO OPEN-CHAIN CROWN ETHERS WITH TERMINAL QUINOLYL GROUPS
末端基为喹啉基的两个开链冠醚与铀(Ⅵ),钍(Ⅳ)配合物的合成与表征
Snthesis of Bisazo Fluoroarsenazo Reagents of Chromotropic Acid and Their Color Reaction with Thoriumy;
变色酸双偶氮氟胂型显色剂的合成及其与钍的显色反应研究
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
Determination of Trace Thorium in Triuranium Octoxide by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry
同位素稀释-电感耦合等离子体质谱法测定八氧化三铀中微量钍
protactinium-231-thorium-230 dating
镤-231钍-230测年法
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。
I was struck by the fact that the activity of uranium and thorium compounds appears to be an atomic property of the element uranium and of the element thorium.
我突然意识到，铀化合物和针化合物的这些活性似乎是元素铀和元素钍的原子属性。
SYNTHESIS,CHARACTERIZATION AND BIOACTIVITY OF U(Ⅵ),Th(Ⅳ) COMPLEXES WITH BIS SCHIFF BASE FROM FUROYLPYRAZOLONE
呋喃甲酰基吡唑啉酮双席夫碱与铀(Ⅵ)、钍(Ⅳ)配合物的合成、表征及生物活性