指出目前已初步形成了较为完善的稀土化学分析方法国家标准体系。
Up to now, a comparatively complete system of national standard methods for rare earth chemical analysis is established.
应用电化学方法及腐蚀试验研究了LY 12铝合金表面常温稀土化学转化膜。
The cerium conversion coatings on LY12 aluminum alloy surface under normal temperature was studied by electrochemical methods and corrosion experiments.
模型包括土壤中稀土化学热力学平衡体系、土壤水分物理形状和土壤剖面的稀土通量。
It includes the chemical thermodynamic balance system of REEs, soil water physical characters and REEs flux in soil profile.
从电镜照片，X光衍射图谱和DSC图谱上表明了稀土化学灌浆材料有聚合物的结晶和二次固化峰的存在。
It was indicated there were polymer crystalline and two solidifying peaks in the rare-earth chemical grouting materials by the electronic microscope photograph, X-ray diffraction analysis and DSC.
回顾了我国稀土化学分析方法标准化工作的历史，并介绍了近年来我国稀土化学分析方法标准化工作的进展。
A historical record of work on national standard methods for rare earth chemical analysis in China is reviewed and recent development in this field is introduced.
今天我们将继续报道稀土金属类的稀有化学元素。
Today we continue our report on the group of chemical elements known as rare earth metals.
用特异化学标记的短链DNA取代了混有稀土的复合物，每一个链有不同顺序的基因编码。
In place of combinations of rare-earth compounds, its unique chemical markers are short stretches of DNA, each with different sequence of genetic code.
但是，稀土生产往往带有放射性，加工企业在冶炼和分离稀土时，也经常使用危险的化学品，周围的空气、水和土地容易遭到污染。
However, rare earth is often radioactive. Moreover, in the smelting and extraction of rare earth, dangerous chemicals are frequently used, thus polluting local air, water and land.
在信丰周边农村，数百家小型露天稀土矿星罗棋布，矿工们正在往矿石上泼洒水和化学制剂，从而产生一种富含稀土的油泥。
The countryside around Xinfeng is dotted with hundreds of small open-pit mines into which miners pour water and chemicals, producing a sludge rich in rare earths.
稀土合金膜具有优异的化学性质及其磁学、光学与俘获热中子等性能，为其广泛应用提供了基础。
Rare earth alloys have many desirable chemistry and magnetism behaviors, unusual optical and seizing thermal neutron properties, which provide the foundation for their applications.
通过实验手段，研究了稀土对电沉积法制备泡沫铜化学预镀工艺的影响。
The effect of rare earths on the chemical pre-plating process for electro-deposition of foamy copper was studied through experiments.
由于稀土元素在电学、光学、磁学和化学等方面的独特性质而获得了广泛的应用，需求量逐年增加。
Due to their unique characteristics in electricity, optics, magnetics and chemistry, ra re earth elements are widely used and their demand has been increasing year by year.
并对稀土元素在化学热处理过程中的作用机理进行了探讨。
The article also investigated the action mechanism of rare earth elements in the process of chemical heat-treatments.
本文主要研究了煤系高岭岩的微量、稀土、氧同位素地球化学特征。
The paper presents the geochemical characteristics of trace elements, REE and oxygen isotopes of kaolin rocks.
老湾花岗岩的岩石化学、稀土元素和同位素特征指示出老湾花岗岩源于下地壳经部分熔融作用形成。
The lithochemistry, REE and isotope characteristic of strontium, oxygen and lead of Laowan granite show that the granite originates from lower crust by partial melting.
文章在充分了解地质背景的前提下，对冰凌山钙华的水化学、碳氧同位素和稀土元素作了研究分析，从而取得以下成果。
In premise of full understanding geologic background, the analysis of hydrochemistry, carbon-oxygen isotope and rare earth element (REE) were made, then the results yielded as follow.
采用稀土改进的化学镀法在多孔陶瓷载体上共沉积钯-银合金膜。
Rare earth improved electroless plating method was developed for simultaneously depositing Pd-Ag alloy film on ceramic support.
提出化学共沉淀法在稀土微粉制备中具有广泛的前景。
There will be a wide space for the development of the rare earth micro powders.
本文介绍了PV C化学建材的环保化及其无毒助剂，主要是稀土类稳定剂、填充剂、加工改性剂。
Environmental protection of the chemical material-PVC and its innocuous agent was introduced in this paper, especially REC stabilizers, filling agents and processing modifiers.
稀土元素以其特殊的物理和化学性质在汽车尾气三效净化催化剂（TWC）中获得了广泛应用。
Doped rare earth oxides have been widely used in three-way catalyst(TWC) for purification of automobile exhausts because of its special properties.
目的研究稀土元素的生物化学作用和无机、有机抗肿瘤药物的协同作用。
Aim To study the biochemistry of lanthanides, the cooperative action of inorganic and organic anti-tumor drugs.
五龙沟金矿区硅化石英的稀土元素地球化学特征可较好地反映金矿化程度和多期次成矿特性。
REE geochemistry of silicated quartz reflects intensity and multiple epochs of gold mineralization in Wulonggou gold ore area.
本文还首次对电化学脱氧提纯稀土金属钇的基本原理和热力学过程进行了论证。
In this paper, basic principle and thermodynamic process of the electrochemical deoxidation purified rare earth metal yttrium are firstly demonstrated.
在众多发光材料中，以稀土钒酸盐为基质的发光材料具有良好的化学稳定性和热稳定性。
Among the large number of luminescent materials, rare-earth vanadate host luminescent materials are well known for their good chemical and thermal stability.
从稀土元素变价化学的角度出发讨论了稀土离子在长余辉材料中的作用，介绍了长余辉材料设计的一些想法。
Basing on the principle of the abnormal-valence chemistry of lanthanide, we summarize the action of rare earth ions in LLP materials and present our idea on the designing of LLP materials.
介绍了稀土元素的化学性质，在制备水处理絮凝剂方面的研究和应用情况。
The chemical properties of rare earth element are introduced, and the preparation of water treatment flocculants by using the rare earth is summarized.
电化学测试结果显示稀土元素掺入有效的提高了材料的循环性能。
The results of electrochemical testing indicated that doping rare earth elements can improve the cycle performance of the material.
电化学测试结果显示稀土元素掺入有效的提高了材料的循环性能。
The results of electrochemical testing indicated that doping rare earth elements can improve the cycle performance of the material.
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