查询词典 rare earth

Because of the radioactivity in waste water of rare earth factories,the purificatory principle of radioactive waste water,and adsorption of some clay minerals and soils for rare earth was studied.

基于稀土厂废水的放射性，吸取水质放射性污染净化原理与多种粘土矿物和土壤对稀土的吸附性，探讨稀土厂废水放射性的净化技术。

It is important to understand the tribological characteristics of rare earth materials and the role of rare earth element.

了解和掌握含稀土材料的摩擦学特性及稀土元素在其中的作用机制具有重要的意义。

The distribution curves of rare earth elements show a consistent rightward declined light rare earth elements enrichment pattern.

轻稀土元素相对于重稀土元素较为富集，具中等的负铕异常，稀土配分曲线均显示比较一致的右倾的轻稀土富集的配分模式。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnatedcathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth dopedmolybdenum cathode have been studied in this paper.

稀土掺杂钼热阴极发射特性和浸渍与亚微米斯坎迪亚掺杂钨阴极基体，以及稀土掺杂二级排放特性钼阴极进行了研究，在此文件。

The two volcanic materials are similar but are also different ①the partition mode of rare-earth element is similar to that of the basalt.②the increase content of the rare-earth element content in transitional layer shows that it enrichs in this segment due to the volcano events. Moreover, the comparability of the partition mode shows that the volcano-genic materials and the basalt are of the same source.③low Eu anomaly different from the high Eu anomaly of medium-acidic tuff in Meishan section, that show that their formation is different④there are plentiful basalt detritus.⑤there are enrichment of the Ti element.⑥the lower content of siderophile element of Ni and Co, especially in the transitional layer, show that there were not extraterrestrial events and big scale basic or ultrabasic volcano eruption events in this area. These characteristics show that the sedimentary source of Xuanwei Formation and Kayitou Formation is basalt.

1稀土元素配分模式与玄武岩类似；(2)稀土元素含量在异常层的增加反映了火山事件导致了它在该段地层中的富集，而配分模式的相似性反映了火山物质来源与玄武岩具有同源性；(3)低"Eu"异常区别于煤山剖面的中酸性凝灰岩高"Eu"异常模式，说明界线粘土岩成因也不同于煤山剖面的界线粘土；(4)大量的玄武岩岩屑；(5)Ti元素的富集；(6)亲铁元素Ni和Co含量较低，特别是在界线异常层含量降低，表明本区在界线处可能并不存在地外事件和大规模基性、超基性火山喷发事件，这些特征反映本区宣威组和卡以头组物质来源主要为玄武岩。

The method of inductively coupled plasma-mass spectrometry for determination of impurities of 30 trace rare earth and non-rare earth elements in high purity ytterbium oxide was studied.

报道了高纯氧化钇中30种痕量稀土和非稀土杂质元素的电感耦合等离子体质谱测定方法。

Objective\ Study the contents of rare earth elements in normal fetal kidney and cerebella, and provide base data for the levels of rare earth elements in different phase o f human development.

目的 测定深圳市正常中期引产胎儿肾脏和小脑中多种稀土元素的含量，为研究人类生命不同阶段稀土元素水平提供基础资料。

The results show that the rare earth element Ce can codeposit with cobalt-base alloy, and with increase of mass added of Ce in solution, the content of Co, Ni, Ce in alloy increases and the content of B decreases. Ce can increase plating rate of alloy in some range of content. The rare earth makes deposition potential mve in positive direction and polarizability decrease.

结果表明，在水溶液中稀土元素Ce可以与钴基合金实现共沉积，且随着镀液中Ce的浓度的增大，合金镀层中Ce、Co和Ni的含量逐渐升高，B含量降低；且Ce在一定范围内能够明显提高合金的沉积速度；稀土还使Co-Ni-B合金的析出电位发生了正移，减小了极化度。

It has been shown that the compound treatment can not only result in a considerable degree of desulfuration and cleanliness of steel, but also bring unique inclusion mordifyingeffect of RE into full play: Harmful effects of inclusions to the performance of steel can be eliminated by Rare Earth additions through formation of dispersively distributed, undeformable and stable Rare Earth sulphide and oxysulfide in place of elongated MnS.

结果表明：复合处理不仅可以脱硫、净化钢液，而且充分发挥了稀土的变质夹杂物的特性：稀土金属可以将钢中原有的条状硫化锰夹杂转变为在钢中均匀分布、不易变形的、稳定的球形稀土硫化物和硫氧化物，从而可以消除夹杂对钢材造成的不利影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了