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- soluble rare earth elements 可溶态稀土
- Distribution pattern of rare earth element;? 稀土元素分布模式?
- The color of Apatite is often due to the presence of rare earth elements. 磷灰石的颜色常取决于存在的稀土元素。
- P. Henderson ed., Rare Earth Element Geochemistry, Elsevier, Amsterdam, 1984. 涂光炽等编著,地球化学,上海科学技术出版社,上海,1984。
- Characteristics of trace and rare earth elements suggest that Ophiolite originated from the setting similar to mid-ocean ridge. 微量元素和稀土元素特征显示蛇绿岩形成于类似洋中脊的构造环境。
- Accumulation and toxicity of rare earth elements in brain and their potential effects on health. 稀土元素的脑部蓄积性、毒性及其对人群健康的潜在危害
- Besides,the mechanism of B C N RE co-cementation and the effects of rare earth elements are diecussed. 本文对B-C-N-RE共渗的机理及稀土元素的作用作了初步的探讨。
- Rare earth elements can improve the plating bath performance and deposit quality, and has good application prospect. 稀土添加荆可改善镀液性能,提高镀层质量,有良好的应用前景。
- A survey was conducted to reveal rare earth elements (REEs) in sediments from Baotou section of the Yellow River. 采用室外现场采样及室内分析方法,研究了黄河包头段柱状沉积物中稀土元素的分布特征。
- The mechanism of pure rare earth elements improving electrical conductivity of industrial alu... 还对镧、铈降低铝常温电阻率的机理作了初步的探讨。
- The effects of rare earth elements on Reformation of amination-catalyst for fatty alcohol were analyzed in this paper. 研究表明,稀土元素具有和镍相反的对高沸物成分的抑制作用,稀土元素的加入普遍提高了脂肪醇胺化反应的选择性。
- Application of rare earth elements(REEs)in agriculture is a new application area of REEs created by China. 稀土农用是我国独立开创的稀土应用领域,30年来,取得了巨大的经济效益。
- ICP-AES studies on characteristics of distribution, accumulation and transportation of rare earth elements in soil-Dicranopteris dichotoma system. 感耦等离子体发射光谱法研究土壤-铁芒萁系统中稀土元素的分布、累积和迁移特征。
- The bioaccumulation of rare earth elements in the internal organs of fish and their effect on the activities of enzymes in liver. 稀土元素在鱼体内脏中的富集及对肝脏中酶活性的影响。
- Effects of rare earth element lanthanum on the activities of invertase, catalase and dehydrogenase in red soil. 镧对红壤转化酶、过氧化氢酶和脱氢酶活性的影响。
- Cell suspension culture of Saussurea medusa was cultivated with either Ce3+, La3+, Nd3+ or a mixture of rare earth elements (MRE) supplemented. 研究了稀土元素钕(Nd3+)、铈(Ce3+)、镧(La3+)和混合稀土(MRE)对摇瓶液体培养的水母雪莲细胞生长及黄酮类化合物合成的影响.
- The fast developing methods- 137 Cs,rare earth element(REE)and 210 Pb tracer in soil eorsion studies were evaluated. 该文评述了近年来发展较快的137Cs、稀土元素(REE)、210Pb示踪法在土壤侵蚀研究中的进展
- The effect of rare earth elements such as cerium, lanthanum and yttrium on electroless deposition rate of cobalt-nickel-boron alloy was studied. 研究了稀土元素铈、镧、钇对化学镀钴-镍-硼合金沉积速度的影响。
- One advance that exploits quantum confinement makes use of rare earth elements, such as erbium, that scientists know to be good light emitters. 有一项以量子局限原理为基础的新发展,用的是已知发光效率较高的铒等稀土元素。
- The solid ternary complexes of rare earth elements(La,Nd,Gd,Er)with Tiron and nitrogen heterocylic ring have been synthesized in aqueous medium . 在水溶液中,制备了稀土(镧、钕、钆、铒)与钛铁试剂,含氮杂环(吡啶,喹啉,邻菲咯啉)三元固体配合物,通过化学分析及元素分析,确定了配合物的组成。