这在要求保护稀有合金的情况下或在高温井中是特别必需的。
This is necessary particularly in applications requiring the protection of exotic alloys or in high-temperature Wells.
在一个案例中，业内高管发现一种号称纯金的涂层其实是一种复杂的合金，含有锇、铱、钌、铑等稀有金属。
In one case, executives discovered a coating advertised as pure gold that masked a complex alloy, which included rare metals such as osmium, iridium, ruthenium and rhodium.
其它的利用太阳光分解水的方案依赖于腐蚀性溶液或者相对稀有且昂贵的材料比如铂合金。
Other attempts to produce devices that could use sunlight to split water have relied on corrosive solutions or on relatively rare and expensive materials such as platinum.
本文介绍了稀有金属合金丝材拉丝用的快速加热电炉。
The article introduces a furnace for fast heating of rare alloy wires during drawn.
这类产品包括许多稀有金属或贵金属，贱金属或合金带材或各种形状的挤压型材，某些轴承金属，某些硬软磁性材料等。
Examples of this class include many of the rare or precious metals, strip or extruded shapes in base metals or alloys, some bearing metals, some hard or soft magnetic materials, etc.
产品：稀有金属钨粉，碳化钨，超硬质钨钢（硬质合金）
Products: Tungsten Powder , Tungsten Carbide Powder, Cemented Carbide Alloy.
公司产品包括钼、钽、铌、钨、锆及其合金的丝、管、带、箔等稀有金属深加工材料。
Our products include wires, tubes, ribbons and foils of rare metals such as Mo, ta, Nb, w, Zr and their alloys.
钼是一种宝贵的稀有高熔点金属，是生产合金刚、不锈钢、耐热钢和合金铸铁的重要合金化元素。
Molybdenum is the rare metal with high melting point, which is often used to prepare alloy steel, refractory steel and stainless steel.
[4] 宋佳佳， 郭德燕，邓超，等。孕育形核处理对金锡共晶合金铸态凝固组织的影响[J]。稀有金属材料与工程， 2013，42（4）：756-760。
SONG J J, GUO D Y, DENG C, et al. Effect of incubated nucleation treatment on solidification microstructure of Au-Sn eutectic alloy[J]. Rare Metal Materials and Engineering, 2013, 42(4):756-760.
[5] 黄虹。美国和俄罗斯研究与开发钛及其合金在坦克中的应用[J]。稀有金属与硬质合金 ， 1997，49 （5） ：45–47。
HUANG H. Application of USA and Russian development titanium and its alloys in tank[J]. Rare Metals and Cemented Carbides , 1997, 49 (5) : 45–47.
[17] 金蕾，李荻。 钛合金化学铣切及电化学加工[J]。稀有金属材料与工程，1989，（2）：66-71。
JIN Lei, LI Di. Chemical milling and electrochemical machining[J]. Rare Metal Materials and Engineering, 1989, (2): 66-71.
[17] 金蕾，李荻。 钛合金化学铣切及电化学加工[J]。稀有金属材料与工程，1989，（2）：66-71。
JIN Lei, LI Di. Chemical milling and electrochemical machining[J]. Rare Metal Materials and Engineering, 1989, (2): 66-71.
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