查询词典 rare earth metal

The active substance in Vasovist is gadolinium, a rare earth metal element that is detected by MRI scanners.

Vasovist 中的活性物质是钆，它是一种可被 MRI 扫描到的稀有金属物质。

Using 1,3-dicyanobenzene as a precursor, we have obtained two coordination polymer of rare earth metal bridged by isophthalato ligand, Eu complex (4) and Sm complexe coordinated (5). X-ray single crystal diffraction investigation confirms that complex 4 and 5 are isomorphous with near isostructural 〓 unit.

以1，3-苯二氰为前体，合成了两个新的稀土金属与间苯二甲酸根配体桥联的聚合物：间苯二甲酸根配体配合的铕和钐化合物，4和5.X-射线衍射结构分析表明化合物4和5均具有〓基本结构单元且两者结构类似。

A bright , silvery rare earth metal element , found in monazite and bastnaesite and used for coloring glass and for doping some glass lasers .

钕：一种亮银色的稀土金属元素，见于单独在石和氟碳锑矿中存在，用于给玻璃染色和给一些玻光器上色。

The interactions of alkali and alkaline-earth ions and rare—earth metal ions with saccharides, resulting in the formation of saccharide adducts, have been investigated in great detail.

本文主要从糖的构型、构象、金属离子半径的大小和电荷的影响等方面入手分别研究了固体和水溶液中糖与金属离子的配位现象。

Light bulbs employ the technology of lead glass and three-primary-color fluorescence powder of rare-earth metal, with a nitrified cotton-earth layer.

独特的设想和构思紧密结合精湛的工艺，为诸多商家创造了无限商机，成为上海同业中的佼佼者。

The paper also introduces the ingredients of some typical nobel metal - rare earth metal catalyst.

给出了几种典型贵金属－土金属催化剂的配方。

The results show that HY exchanged with alkali-earth metal cation or rare-earth metal cation has higher stability than that of HY.

结果表明，用碱土金属离子或稀土金属离子交换改性的HY分子筛在烷基化反应中具有比HY更好的稳定性。

The study status of treating wastewater containing metal ions and recovery of rare-earth metal by using emulsion liquid membrane technique were especially expounded.

介绍了液膜分离原理及其工艺流程，重点阐述液膜分离技术在处理含金属离子废水和提取稀土金属的研究现状和进展。

Kinetic investigation about Pt/TiO〓 catalyst and adding transition metal, rare-earth metal to Pt/TiO〓 catalyst on the hydrogenation of CNB.

初步探讨了Pt/TiO〓催化剂以及添加过渡金属和稀土金属催化剂上氯代硝基苯催化加氢的反应动力学。

The invention relates to a rare-earth metal oxide supported transition metal or transition metal alloy catalyst and the method of on the catalyst, using alcohol or alcohol water solution catalytic chemical deposition to prepare nano carbon fiber and 3D order nano carbon stacking structure.

本发明涉及一种稀土金属氧化物担载过渡金属或过渡金属合金催化剂及利用在该催化剂上，乙醇或乙醇水溶液催化化学沉积制备纳米碳纤维和三维有序纳米碳纤维堆积结构的方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。