scandium是什么意思

用法例句

~(40)Ar/~(39)Ar dating for the Jiajika pegmatite-type rare metal deposit in western Sichuan and its significance;

四川甲基卡伟晶岩型稀有金属矿床的成矿时代及其意义

This paper introduces the usage of important rare metal and the resources and development situation of the rare mental in China,and advances some concrete measures for protecting the important strategic materials and mineral resources.

介绍了重要稀有金属的用途和我国稀有金属资源与开发情况,提出了对重要的战略物资和矿产资源保护的具体措施。

China is rich in rare metal and rare earth element resource, current situation for some rare metal is still not ideal.

我国是稀有稀土金属资源储量丰富的国家,但部分稀有金属资源现状并不理想,随着高新科技的发展,稀有金属消耗量大增,每年都不得不从国外大量进口稀有金属精矿,因此加强稀有金属找矿,提高矿山采矿水平是当前必须解决的问题。

The metalogenic relationships between metasometism of rock body and rare metals of tantalum, niobium, lithium, rubidium and cesium etc are discussed, based on granite body' s rock phase subdividing and characteristics of rock evolution of Yashan, and metallogenetic mechanism and types of genesis of deposit are analysed.

根据雅山花岗岩体相带划分及岩体演化特征,论述岩体交代作用与Ta、Nb、Li、Rb、Cs等稀有金属的成矿关系,进而探讨矿床形成机制和成因类型。

With requred to the melting of rare metals the major issues are the development of melting technology, assurance of product quality, and increase in production efficiency.

真空自耗电弧炉是熔炼钛、锆等稀有金属的主要工业手段，如何提高熔炼工艺水平，保证产品质量，提高经济效益，已成为稀有金属行业广泛关注的问题。

Although the prices of copper and gold are lowering down in the international market,both of the prices and sales volume of rare metals are increasing,due to their more and more extensive application in the fields of aerospace,electronics,ceramics,metallurgy and other industries.

近年来国际市场上铜、金等主要金属价格狂跌不止，但稀有金属由于在电子、航空、陶瓷、冶金等领域中的应用越来越广而形势看好，并推动了矿床学界对稀有金属矿床的研究。

The technics of purifying Sc metal in vacuum distilling with coarse Sc metal which is made by ScF3deoxidized by Ca at heated condition .

介绍了用氟化钪钙热还原得到的粗金属钪为原料 ,通过真空蒸馏净化制取纯金属钪的工艺过程及其技术参数。

The results show that the microstructure of as-cast alloys exhibits the feature of Widmanst tten structure, the size and content are decreased by the addition of metal Sc; the need.

研究结果表明在合金的铸态组织中存在大量的类魏氏组织,添加金属Sc减小了魏氏组织的含量与尺寸;经过等温退火及淬火处理后,在合金组织中存在细针状的马氏体组织和少量的类魏氏体组织,同时,随着退火温度的降低,组织中针状马氏体尺寸减小,金属Sc对合金组织起明显的细化作用;在铸态合金中存在的相为Ti3Al,添加金属Sc使αTi在低角度的衍射峰强度变弱,在高角度的衍射峰强度变强;添加金属Sc导致Ti6Al4V合金片层组织的显微硬度大幅度提高,当Sc含量在0。

technology of industrial rare metal

工业稀有金属工艺学

China has rare metals and all kinds of mineral resources, so foreigners know they can make profits here.

我们有稀有金属，有各种矿藏，有油水。

Some rare metals have radioactivity.

某些稀有金属具有放射性。

They found a rare metal near the mill.

他们在磨房附近发现了一种稀有金属。

RELATIONSHIP BETWEEN THE RARE-METAL CONTAINED GRANITIC INTRUSIONS AND BERYL MINERALIZATION IN PINGWU,SICHUAN,CHINA

四川平武稀有金属花岗岩与绿柱石的成矿属性

Recent Advance of the Practical Application of Rhodamine 6G in Photometric Analysis of Noble Metals and Rare Metal;

罗丹明6G在贵金属及稀有金属光度分析中的实际应用新进展

Application of Computer to Vacuum Arc Remelting(VAR) of Rare Metals

微机在稀有金属真空电弧熔炼中的应用

Comments on Technological Process of Recycling Rare Metals- Molybdenum, Vanadium from Spent Catalyst;

废催化剂中稀有金属钼、钒回收工艺评述

The Development Status and Countermeasure Analysis of Rare Metals Industry in Hunan

湖南省稀有金属行业发展现状及对策分析

Utilize funds from treasury bonds to accelerate development of domestic downstream processing industries of domestic titanium, tungsten molybdenum and some other rare metals;

利用国债资金,加快我国钛、钨、钼等稀有金属深加工产品生产发展

"However, the exemption from or reduction of income tax on enterprises with foreign investment engaged in the exploitation of resources such as petroleum, natural gas, rare metals, and precious metals shall be regulated separately by the State Council."

但是属于石油、天然气、稀有金属、贵重金属等资源开采项目的,由国务院另行规定。

These coins were round lumps of precious metal with their weight stamped on them.

这些硬币是由稀有金属制成的圆形块状物，上面印有其重量。

Now the Curies became interested in the strange behavior of a rare metal, uranium.

居里夫妇开始对一种稀有金属——铀的特性产生了浓厚的兴趣。

Rare metals are extracted By our factory from scrap iron and copper oBtained By recycling the oBsolete and waste.

本厂生产的稀有金属是收旧利废，从废铜烂铁中提炼出来的。

rare and rare earth metal ore deposit

稀有和稀土金属矿床

Beijing Non-ferrous Metals & Rare Earth Research Institute

北京有色金属与稀土应用研究所

Phase Diagrams and Electrochemistry of Rare Earth-Nonferrous Metals;

稀土有色金属合金相图及电化学性能研究

Analysis on Listed Company's Share Ownership Structure of Enterprises of China Rare Earth and Rare Metals Industry

中国稀有稀土金属行业上市公司股权结构分析及改进策略