A black mineral that is an ore of niobium and '.

一种黑色矿物，是铌、钽矿石。

A black mineral is an ore of niobium and tantalum.

一种黑色矿物是铌、钽矿石。

The part two is of oxide characteristics of uranium-niobium alloy.

另一部分是铀铌合金的氧化特性研究工作。

Niobium in the low alloy steel was determined by spectrophotometry.

用分光光度法可以测定低合金钢中的铌。

Niobium is the metallic element with the highest transition temperature.

铌是转变温度最高的金属元素。

The niobium rare earth mineralization was concerned with tumour carbonatite.

铌、稀土成矿作用与脉状、瘤状碳酸岩有关。

The niobium strips were fabricated by forging-cogging, rolling and heat treatment.

研究了锻造开坯、轧制、热处理工艺对铌带深冲性能的影响。

The niobium superconducting cavities shown here could prove useful for waste transmutation.

此处展示的铌超导腔已经证明可以用于废料嬗变。

Among the high temperature nonferrous metals are molybdenum, niobium, tantalum, and tungsten.

高温有色金属包括钼，铌，钽，钨。

Recently various new reagents and detection methods were used to the photometric detection of niobium.

近年来各种新试剂、新方法的不断涌现，使铌的光度分析有了新的进展。

After niobium microalloying for high carbon steel, the mechanical properties of wire rods was improved.

铌微合金化处理后高碳钢线材的力学性能得到了改善。

Textures in deep punching niobium sheets have been examined by the EBSD technology in the present paper.

介绍了采用电子背散射衍射测定深冲用再结晶铌板织构的结果。

Then , it has explained that the metal niobium is used as the superconducting gyroscope rotor's material.

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。

Niobium oxide optical thin films have been prepared by low frequency reactive magnetron sputtering system.

利用低频反应磁控溅射制备五氧化二铌光学薄膜。

The extraction properties and mechanism of niobium thiocyanate complex with secondary amine 7203 are studied.

研究了仲胺7203(简写为7203)萃取铌硫氰酸盐络合物的性能及其机理。

The effects of niobium on breaking toughness and wear - resistance of high Cr - Mn white iron was investigated.

研究了铌对高铬锰白口铸铁断裂韧度和耐磨性的影响规律。

The effect of indium-niobium modules on improving the power stability of microminiature diode-laser was studied.

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 leaching mechanism of niobium from a refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.

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 adsorption properties of niobium oxalate complex in oxalic acid solution with W-305C exchange resin were investigated.

研究了W 305 C离子交换树脂从草酸溶液中吸附铌草酸配合物的性能。

It is difficult to separate from niobium, the element above it in the periodic table, with which it shares many properties.

很难将它与铌分开，铌是周期表中钽的上面一个元素，两者具有许多共同的性质。

The existing pyrometallurgical process to prepare metal niobium is complex, expensive, energy intensive and probably polluting.

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 anodization changes of the niobium ion sample implanted to the uranium surface at different temperatures have a same tendency.

铀表面不同温度注入铌离子试样的电极化曲线变化趋势相同，均处于活化体系。

The adsorption properties of niobium oxalate complex in oxalic acid solution with 707 anion exchange resin have been investigated.

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 enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied.

研究了用酸浸与钠碱熔融法从钨渣中富集和回收钽铌。

These are tiny pieces of a superconducting material consisting of a niobium film on an aluminium oxide wafer with gaps etched into it.

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。

This consists of a superconducting niobium conducting path that is configured with strongly reflective "mirrors" for microwaves at both ends.

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”）。

Traditionally the sealed hat of niobium alloy using in the high pressure natrium lamp adopt the tube of niobium-zirconium alloy to process.

传统的高压钠灯用铌合金封帽采用铌锆合金管加工而成。

Therefore, it is highly desirable to develop a simple, low-cost and environmentally sound process to prepare niobium and niobium-base alloys.

因此，有必要研究一种流程短、成本低且对环境友好的铌及铌合金制备方法。

With three microalloy steels containing 0.24, 0.15, and 0.08% niobium respectively, the precipitation of niobium carbide in ferrite has been studied.

对铌含量分别为0.24、0.15和0.08%的三炉微合金化钢中碳化铌在铁素体中的沉淀进行了较为深入的研究。