metal clad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。

China s economic growth and the development of non-state-owned financial enterprise show that the non-state-owned financial enterprise can greatly promote the development of the national economy.

中国经济增长与非国有金融的发展现状表明非国有金融对我国经济发展有重大的促进作用,表现在:促进储蓄和资本形成功能;合理配置风险、激发企业家才能的功能;促进市场竞争、优化资源配置、完善金融市场功能;弥补国有金融的体制缺陷、信息劣势和治理结构的缺憾,支持技术创新、完善企业组织创新机制等。