niobium的例句大全

Determination of the content of carbon in tantalum powder, niobium powder and tantalum carbide by high frequency infrared absorption spectroscopy

高频红外吸收法测定钽粉、铌粉和碳化钽中的碳

Ultra-fine niobium and tantalum powders were synthesized by hydrogen reduction from niobium ( V) chloride and tantalum ( V) chloride in argon atmosphere at 950 ℃.

在氩气气氛中，在950℃条件下用氢气还原相应的气态氯化物分别制取了铌和钽的超细微粉末。

Production of Ultra-pure Tantalum Oxide/ Ultra-pure Niobium Oxide from CH_3 ( CH_2)_5CHOHCH_3-HF-H_2SO_4 System

仲辛醇-HF-H2SO4体系制取超高纯氧化钽和超高纯氧化铌

determination of trace niobium in rare earth mineral by inhibiting methyl red discoloring spectrophotometry

阻抑甲基红褪色光度法测定稀土矿石中痕量铌

experimental study of the tailings and tailings sintered, temperature, carbon amount to the effects of niobium chloride d.

实验研究了尾矿的烧结、温度、配碳量对铌氯化的影响。

Tantalum-Niobium International Study Center ( TIC )

国际钽铌研究中心 ( 比利时 )

Niobium is a soft metal used in producing superconducting steel.

铌是制造超导钢制品的一种软金属.

The chemical behaviour of zirconium, molybdenum, niobium and technetium is observed in the process.

观察了锆、钼、铌和锝在形成界面物过程中的化学行为，在低于2mol/L的硝酸溶液中，钼会进入界面物中。

The price of niobium has nearly doubled over the past decade to about$ 23,000 a tonne last year – a boon for CBMM and for Unocal, the US oil group that owns a large minority stake in the group, but a problem for steelmakers.

过去十年，铌价格几乎翻了一番，去年达到约每吨2.3万美元&对CBMM和持有其大规模少数股权的美国石油集团优尼科（Unocal）可谓好处多多，但对于钢铁制造商则是一个问题。

A black red-brown , or colorless mineral , essentially ( Fe , Mn ) ( Nb, Ta ) 2 O 6, the principal ore of niobium.

一种黑色矿物, 由钇 、 铒 、 钽和其他矿物的氧化物组成.

Several ideas obtained from the construction supervision on 2# tail pond of Yichun Niobium and Tantalum Mine are given on the supervision of quality control, schedule control and cost control for the better work in the future.

通过宜春钽铌矿2~尾矿库监理工作，从监理对质量控制、进度控制、造价控制等方面谈了几点认识，从而更有效地做好工程监理工作。

compounds containing niobium can also be widely used in a variety of chemical reactions as assistant or photocatalysts.

含铌化合物也作为助剂或光催化剂，广泛地应用于催化多种化学反应。

compounds containing niobium can also be widely used in a variety of chemical reactions as assistant or photocatalysts.

含铌化合物也作为助剂或光催化剂，广泛地应用于催化多种化学反应。

A series of niobium acids at different calcination temperatures was prepared.

在不同焙烧温度下制备了一系列固体铌酸催化剂.

In niobium alloy containing carbon occurs decarburization in case of contamination by oxygen at higher temperature.

含碳的铌合金,若在高温下受氧沾污,易产生脱碳现象.

Niobium oxides are favorable promoter and Support.

铌氧化物是优良的促进剂和良好的载体.

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.

Niobium is the metallic element with the highest transition temperature.

铌是转变温度最高的金属元素.

We export Titanium, Tantalum, Niobium , Zirconium and Nickel materials and finished products, kindly contact for inquiry!

我司出口钛, 钽, 铌, 锆, 铌金属材料及其制品.

Use of copper welding, the welding wire with niobium as the media.

选用铜焊, 在焊接时用铌丝作媒介.