1) rare metal tube
稀有金属管材
1.
Development of control system of semicontinuous vacuum annealing furnace for rare metal tubes;
稀有金属管材半连续真空退火炉控制系统研制
2) rare metal tubing plate
稀有金属管板
1.
The result is shown that the test boring precision goes far beyond the technological requirement,rare metal tubing plate can be bored industrially on the MZ1616 numerically controlled drilling machine.
钛、镍等稀有金属管板是特材换热器的主要部件,本文介绍了最难加工的镍基合金C-276管板在自行改造的MZ1616数控钻床上的试钻工艺、参数及操作要领,结果表明:试钻精度远远超过工艺要求,MZ1616数控钻床可以大批量生产的稀有金属换热器管板。
3) rare metal
稀有金属
1.
~(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
2.
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。
3.
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。
4) rare metals
稀有金属
1.
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。
2.
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。
3.
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。
补充资料：高熔点稀有金属(highmeltingraremetal)
【高熔点稀有金属】(highmeltingraremetal)
亦称“难熔金属”。稀有金属的一类。通常指钨、钼、铌、钽、钒、锆，也可以包括铼和铪。这类金属的特点为熔点高、咸度大、抗蚀性强，多数能同碳、氮、硅、硼等生成高熔点、高硬度并肯有良好化学稳定性的化合物。工业上各有其重要的用途：如钨、钼用于柄制合金钢、耐热合金、硬质合金，钨并用作灯丝材料；钒用于配制合金钢；铌、钽用于真空技术、无线电工业（如钽电容器）和化学工业；锆及其合金由于热中子俘获截面很小，用作原子核反应堆结构材料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条