一种黑色矿物，是铌、钽矿石。
高温有色金属包括钼，铌，钽，钨。
Among the high temperature nonferrous metals are molybdenum, niobium, tantalum, and tungsten.
铌是转变温度最高的金属元素。
Niobium is the metallic element with the highest transition temperature.
碳化铌的数量与铌的加入量有关。
此处展示的铌超导腔已经证明可以用于废料嬗变。
The niobium superconducting cavities shown here could prove useful for waste transmutation.
用分光光度法可以测定低合金钢中的铌。
Niobium in the low alloy steel was determined by spectrophotometry.
铌对过冷灰铸铁的基体组织无明显影响。
另一部分是铀铌合金的氧化特性研究工作。
The part two is of oxide characteristics of uranium-niobium alloy.
铌掺杂硅化石墨是改善材料性能的有效方式。
Therefore, Nb doping silicified graphite is a practical way to improve material properties.
铌、稀土成矿作用与脉状、瘤状碳酸岩有关。
The niobium rare earth mineralization was concerned with tumour carbonatite.
论文题目：铌酸锂晶体极化电场的组分依赖研究。
Thesis title: Study on dependence of poling field on composition of lithium niobate crystals.
钢中铌的沉淀析出具有沉淀强化和晶粒细化的作用。
And the precipitation of Nb has the effect of precipitation hardening and grain refinement.
本论文的主要目的是探索新型铌酸盐介电功能材料。
The aim of the thesis is to explore and develop promising new niobate dielectric function materials.
研究了用酸浸与钠碱熔融法从钨渣中富集和回收钽铌。
The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied.
富铌玄武岩是一类具有特殊地球化学特征的岛弧玄武岩。
Nb-enriched basalt is a kind of arc basalt that has special geochemical characteristics.
结果表明，铌可以有效地提高冷硬铸铁高温组织的稳定性。
The results show that Nb can increase the structure stability of chilled cast iron.
这套系统内含一个超导铌通路（两端配置了强烈反射微波的“镜子”）。
This consists of a superconducting niobium conducting path that is configured with strongly reflective "mirrors" for microwaves at both ends.
这是一些细小的超导材料，由一个刻有间隔的氧化铝晶片上的铌薄膜构成。
These are tiny pieces of a superconducting material consisting of a niobium film on an aluminium oxide wafer with gaps etched into it.
通过对蓝宝石的钨金属化，实现了蓝宝石与铌合金的高温封接。
Sapphire and Nb alloy have been successfully brazed by use of tungsten-metallization technique.
同时，还对用金属铌作为超导陀螺仪转子材料进行了分析和解释。
Then , it has explained that the metal niobium is used as the superconducting gyroscope rotor's material.
实验研究了难分解铌钽矿在高浓度氢氧化钾溶液中浸出过程的机理。
The leaching mechanism of niobium from a refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.
研究了707阴离子交换树脂从草酸溶液中吸附铌草酸配合物的特性。
The adsorption properties of niobium oxalate complex in oxalic acid solution with 707 anion exchange resin have been investigated.
现有的金属铌和铌基合金制备工艺复杂、成本高、能耗大、污染环境。
The existing pyrometallurgical process to prepare metal niobium is complex, expensive, energy intensive and probably polluting.
据知情人士称，巴西矿冶公司的铌供应量占全球的约80%，其最大客户都位于亚洲。
CBMM, the Brazilian company, produces about 80 per cent of the world's niobium supply and its biggest customers are all in Asia, according to a person close to the deal.
在适应性研究报告，1998年，农业和农村发展部铌、弗雷德里克、铌。
In Adaptive Research Reports, 1998, NB Department of Agriculture and Rural Development, Fredericton, NB.
采用铟-铌材料组件对超小型泵浦固体连续激光器的功率稳定性进行改良。
The effect of indium-niobium modules on improving the power stability of microminiature diode-laser was studied.
介绍了采用陶瓷坩埚用高频加热-热导法测定钢铁、铜、铌、钽、钛中的氢。
This article described the determination of hydrogen in steel, copper, niobium, tantalum and titanium with ceramic crucible by high frequency induction-thermal conductivity method.
目前钽铌矿的选矿多以重选为主，但重选法选别细粒钽铌矿的回收率非常低。
At present, most of Ta-Nb ores are processed by use of gravity concentration, with which the recovery of fine-grained Ta-Nb mineral is very low.
铌及铌合金以其熔点高、耐腐蚀和良好的高温强度成为重要的高温结构材料。
Nb-based alloys are important high temperature structural materials because of their high melting temperature, corrosion resistance, and high temperature strength.
铌及铌合金以其熔点高、耐腐蚀和良好的高温强度成为重要的高温结构材料。
Nb-based alloys are important high temperature structural materials because of their high melting temperature, corrosion resistance, and high temperature strength.
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