稀土金属

With scandium and yttrium, they make up the rare earth metals.

加上钪和钇，一起组成稀土金属。

The structure changes of silk fiber with different weight gain, by using sericin fixing agent containing rare earth metal ion, were studied in this paper.

用稀土金属离子通过形成配位结合来固着丝胶，制备了不同增重率的丝纤维，研究了增重丝纤维结构变化。

In order to resolve the defect of large capacity fade on cycling, the transition and thulium metal were choosed as additives to synthesize LiMn_2O_4, dope and study the performance in the paper.

针对LiMn_2O_4材料存在着容量衰减等缺陷，本文选用过渡和稀土金属化合物为添加物，开展LiMn_2O_4材料制备、掺杂和性能研究。

The results showed that it is feasible to synthesis the rare earth alkoxide by taking the alkaline earth alkoxides as the providers of alkoxy.

结果表明，以碱土金属醇盐为烷氧基提供者制备稀土金属醇盐是可行的。

Increasing the annealing temperature from 150 to 400℃ for 1h, CeSi〓 or LaSi〓 forms gradually and the completion of reaction occurs at 300-400℃.

在超高真空下，室温，利用电子束蒸发在Si（100）衬底上分别淀积1500埃的轻稀土金属La和Ce薄膜。

Electron-transporting oxadiazole monomer 2-phenyl-5-p-(N-acrylateamino-phenyl-1,3,4-oxadiazole was designed, synthesized and copolymerized with NVK, MMA and Tb2 to give a Tb-complex containg copolymer PKMOTb with dual transporting moieties.

设计并合成了一种具有电子传输性能的噁二唑类单体2-苯基-5--1，3，4-噁二唑，并将此单体和NVK、MMA、Tb_2共聚，合成了同时带有双传输基团和稀土金属配合物单元的新型四元共聚物PKMOTb。

Feasibility of tricocyst test with Tetrahymena pyriformis were evaluated by serial chemicals (Cu2+, Cr2O2-4,Cd2+,MMC, CP, Colchicine). There is no significant difference between control and treated groups with negative chemical (Cu2+).

应用致突变阴性、阳性对照(Cu2+， Cr2O2-4， Cd2+，丝裂霉素MMC，环磷酰胺CP，秋水仙素Colchicine)评价四膜虫刺泡发射实验方法的可行性，并应用该方法检测稀土金属离子La3+，Ce3+， Sm3+， Y3+， Gd3+对四膜虫刺泡发射的影响效应。

A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium,rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable quench stop temperature (16); and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.

一种钢板，其抗拉强度至少约930MPa135ksi），在－40℃（－40°F）下，采用夏氏V型缺口冲击试验测定的韧性至少约120焦耳（88英尺－磅），并且其显微组织包含至少约90％体积的细晶粒的下贝氏体和细晶粒的板条马氏体的混合物，其中该混合物的至少约2／3由从平均粒径小于约10微米的未再结晶奥氏体转变而来的细晶粒的下贝氏体组成，而且，其中所述的钢板包含铁和特定重量百分比的添加元素：碳、硅、锰、铜、镍、铌、钛、铝、钙、稀土金属和镁，所述钢的制备过程为：将一钢板坯加热至一个适当的温度；在奥氏体可发生再结晶的第一个温度范围内，采用一个或多个热轧道次（10），将所述板坯轧制成板材；在奥氏体不发生再结晶的第二个温度范围，采用一个或多个热轧道次（10）进一步轧制所述板材；将所述板材淬火处理（12）至一个适当的淬火终止温度（16）；停止所述淬火处理并将所述板材空冷（18）至室温。

The influences of conditions, such as the different elements in A site, reaction temperature and the reoxidation time etc.on partial catalytic oxidation of AFeO 3 catalyst are reviewed. The results show that the lattice oxygen from AFeO 3 pervoskite catalyst in A site occupied ...

结果表明，稀土金属(La ，Nd ，Sm ，Eu)占据A位的AFeO3钙钛矿型催化剂中的晶格氧适于甲烷选择性氧化制合成气，在完全氧化的LaFeO3催化剂上存在少量的强氧化性氧物种，通过控制再氧化条件，可使CH4 在LaFeO3催化剂的作用下，高转化率(～ 92 %)、高选择性(96 %)地生成合成气。

In addition, we have discovered a new reaction, it is that Dy/SiCl_4 can promote imines to give imidazolidines and tetrasubstituted hydrazines.

Dy／SiCl_4体系具有另外一个重要特性，就是我们发现它能够促进亚胺一步生成五取代的咪唑烷和四取代的肼，这是用其它自由基或直接用稀土金属和亚胺反应无法得到的。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。