lanthanum['lænθənəm]n.1.■【化学】镧(元素符号 La)
lanthanumlanthanum[ˈlænθənəm]n.1.■【化】镧(57号元素, 符号La)
[ˈlanθənəm]
noun
- [mass noun]the chemical element of atomic number 57, a silvery-white rare earth metal(Symbol: La)
（化学元素）镧(符号：La)
- mid 19th cent.: from Greek lanthanein 'escape notice' (because it was long undetected in cerium oxide) + -um
lanthanum
名词 lanthanum:
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
同义词：La, atomic number 57
lanthanum
■Lanthanum nitrate hexahydrate p.A.
(硝酸镧 六水 P.
■ELV 8 accelerator uses flat lanthanum hexaboride as the cathode .
ELV-8型加速器的加速管分为变梯度加速管段和等梯度加速管段两部分。
■The adulteration of the non- fluorescence lanthanum or gadolinium ions can enhance the fluorescence intensity of the complexes of europium,but only have little influence on the locations of the fluorescence characteristic peaks.
La3+、Gd3+以不同比例掺杂Eu~(3+)配合物,在紫外光的激发下,Eu~(3+)荧光发射峰位置只有微小变化,但对其荧光发射强度影响较大。
■Probing Lanthanum Ions Binding on tRNAPhe by NMR
NMR探测苯丙氨酸转移核糖核酸中镧离子的键合
■lead lanthanum titanate thin films
PLT薄膜
■lanthanum chloride seven-hydrate
七水氯化镧
■Keywords phase diagram;lanthanum chloride;tegafur;complex;
三元相图;氯化镧;喃氟啶;镧配合物;
■Responses of Microbial Biomass Towards Exogenous Lanthanum in Two Soils
两种土壤微生物生物量对外源镧的反应
■In order to realize the overall sintering of chromic acid lanthanum heating element,it is necessary to add sintering aids in it.
为了使铬酸镧发热元件能够整体烧结,成型前在铬酸镧粉末中加入助烧剂,将收缩率调节一致。
■lanthanum diethyldithiocarbamate
二烷基二硫代氨甲酸镧
■lanthanum dialkyldithiophosphate
二烷基二硫代磷酸镧
■Preparation technique of a novel lanthanum oxide glass antifogging agent was introduced, and the synthesized agent is characterized by uv/vis spectrometer and the zetasizer tester.
介绍了一种新型氧化镧玻璃防雾剂的研制工艺,并将产品用紫外-可见分光光度仪和纳米粒度分析仪进行了表征。
■They conclude: "Lanthanum carbonate remains safe and effective for treating phosphatemia in stage 5 CKD patients.
他们的结论是，碳酸镧仍然是安全的，且可以有效地治疗第五期CKD病患的高血磷。
■He called lanthanum carbonate "a helpful addition to our armamentarium.
他形容碳酸镧对于整体是有帮助的。
■Investigation of Lanthanum Activity in the Solid Steel by Sensors
传感法研究固态钢中镧活度
■Keywords Mutagenicity test: Micronucleus test: Lanthanum nitrate;
关键词诱变力试验;微核试验;硝酸镧;
■Among the simplest are the lanthanum compounds of the form La??
其中最简单的是la?研问降娘缁0合物。
■Lanthanum chloride (LaCl3), heptahydrate;
别名名称：Lanthanum trichloride;
■single crystal lanthanum hexaboride
单晶LaB6
■X-ray crystallography reveals that the title compound is a novel two-dimensional framework material constructed from coordination between lanthanum and sulfates.
单晶衍射结果表明该化合物是有机胺支撑的、通过镧与硫酸根配位形成的层状开放骨架结构，该化合物也用元素分析、差热－热重和红外进行了表徵。
■Pure RE (cerium, lanthanum) have certain improvement effect on the conductivity of pure aluminum with relatively high impurity contents in some degree of addition, but had a slight effect on that with relatively low impurity content.
单独加稀土铈或镧对杂质含量高的纯铝的导电性在一定的添加范围内有一定的改善，而对杂质含量较低的纯铝的导电性略有改善。
■Keywords lanthanum;demineralization;dental root surface caries;
口腔预防;镧;脱矿;牙根面龋;
■Phosphoric acid, lanthanum salt, cerium terbium-doped;
名称 掺杂铈铽的磷酸镧;
■CRYSTAL STRUCTURE OF POTASSIUM LANTHANUM METAPHOSPHATE
四磷酸镧钾的晶体结构
■Present Situation of Lanthanum Chromite Interconnector in Solid Oxide Fuel Cell
固体氧化物燃料电池铬酸镧连接材料研究现状
■polycrystal Lanthanum hexaboride
多晶LaB6
■STUDIES ON THE SORPTION OF MACROPOROUS PHOSPHONIC ACID RESIN FOR LANTHANUM
大孔膦酸树脂吸附镧的研究
■Experiment results show that interferences with determination of Ca, Mg can be better inhibited by adding lanthanum oxide solution.
实验表明,氧化镧溶液的加入对测定钙、镁元素的干扰有较好的抑制作用。
■lanthanum concentrate rare earth chloride
富镧氯化稀土
■The yttrium abundance is constant ([Y/Fe] =-0.06) for all stars with [Fe/H] >-25. (3) The barium overdeficiency increases with decreasing metallicity when [Fe/H] <-1.7. (4) Lanthanum and cerium are overdeficient with respect to iron.
对[Fe/H]>-2.5的恒星钇丰度为常数([Y/Fe]=-0.06). (3)对于[Fe/H]<-1.7的样本星,随金属丰度减小钡过贫增加·(4)镧和铈相对于铁过贫.
■Then, using phenol adsorption to test the products, it shows that the phenol removal rate of fly-ash base sorbent with lanthanum reaches 88.9%.
对所得产品进行苯酚吸附测试,结果表明,镧负载粉煤灰基吸附剂对苯酚的去除率达到88.9%。
■Judd-Ofelt Parameterization Analysis of Nd3+ Doped Yttrium Lanthanum Oxide Transparent Ceramics[J].
引用该论文 丁君,杨秋红,唐在峰,徐军,苏良碧.
■Hyperfine Structure Measurements on High-Lying Levels of Lanthanum by Laser Fluorescence Spectroscopy[J].
引用该论文 管国明,景春阳,贾列娟,周志尧,林福成.
■From the experiments we can conclude that the "rattling" motion of lanthanum atoms in voids of unit cell produce the effect phonon scattering and make the widen of Raman spectra.
我们认为晶格孔隙中镧原子的振颤运动产生了有效的声子散射并使拉曼谱线加宽。
■Keywords antiknock;carboxylic lanthanum;gasoline;research method test;
抗爆剂;羧酸镧;汽油料;研究法实验;
■Progress of Doped Lanthanum Gallate Solid Electrolytes
掺杂镓酸镧基固体电解质的研究进展
■neodymium-doped sodium lanthanum borate
掺钕硼酸钠镧
■neodymium-doped lanthanum beryllate
掺钕铍酸镧
■erbium-doped lanthanum calcium borate
掺铒硼酸钙镧
■Sr doped lanthanum copper oxide
掺锶铜酸镧
■strontium doped lanthanum manganite
掺锶锰酸镧
■barium titanate ceramic doped with lanthanum
掺镧钛酸钡陶瓷
■GRAIN BOUNDARY REOXIDATION OF BARIUM TITANATE CERAMICS DOPED WITH LANTHANUM
掺镧钛酸钡陶瓷晶界的再氧化
■Ytterbium doped potassium lanthanum tungstate crystal
掺镱钨酸镧钾晶体
■Abstract Objective To observe the effect of polystyrene sulfonic lanthanum on calcium and phosphate metabolism in rats with chronic renal failure induced by adenine.
摘要 目的 观察聚苯乙烯磺酸镧对大鼠腺嘌呤性慢性肾衰竭钙磷代谢的影响。
■Abstract : ELV-8 accelerator use flat lanthanum hexaboride as the cathode .
摘要 ：ELV-8型加速器的加速管分为变梯度加速管段和等梯度加速管段两部分。
■Objective Study of the influences of lanthanum, cerium and fluoride on the activity of glucosyltransferase (GTF) and adherence of oral cariogenic bacteria.
摘要目的为观察镧、铈和氟对葡糖基转移酶活性和口腔主要致龋粘附的影响。
■The pot experiment was conducted to analyze the concentration and distribution characteristics of rare earth elements (REEs) lanthanum (La) in forages upon the foliage and soil dressing the La.
摘要设立盆栽试验，研究不同施用条件（喷施和土施）下稀土元素镧在牧草体内的含量及分布特征。
■Through the fluorescence spectra, FT-IR spectra and curve-fit, the effect of lanthanum (III) on horseradish peroxidase (HRP) was studied.
摘要运用萤光光谱、傅立叶变换红外光谱以及曲线拟合等技术研究了镧离子对辣根过氧化物酶的结构的影响。
■Location of semipermeable layer and permeability of seed in S. sudanense were studied by lanthanum tracer、transmission electron microscope and energy dispersive X-ray analysis.
摘要通过硝酸镧示踪、透射电镜观测和X射线能量色散分析等技术，对苏丹草种子半透层的位置和透性进行了研究。