查询词典 niobium

In chapter 4, we study the polarizability of niobium clusters including d electron.

第四章，我们研究了包含d电子的铌团簇的极化率。

Recently various new reagent s 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。

The character of the niobium oxides and their catalytic application were reviewed.

综述了含铌氧化物的特徵及其在不同催化过程中的应用。

The structures,physicochemical properties and catalytic applications of niobic acid and niobium oxide are reviewed in this paper.

介绍了铌酸-氧化铌的结构、性质及其在多相催化反应中的研究现状及应用前景。

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

一种黑色矿物，是铌、钽矿石。

The property and catalytic application of niobium oxide in the multiphase field were briefly introduced.

简要介绍了铌氧化物的性质及其在多相催化领域内的应用。

The research results can meet the requirements about qualitative analysis and semi-quantitative analysis of niobium in alloy.

讨论合金中铌元素的定性和半定量分析方法，结果能满足材料牌号鉴别的需要。

There are nine main producers of high quality niobium products,including ...

高科技对铌的需求和钢铁工业向优质高产方向发展，为今后铌工业的发展开辟了广阔的前景。

The present and several new reduction process of niobium and tantalum powder were reviewed.

综述了铌粉和钽粉的现行生产工艺及几种新的还原方法，介绍了金属热还原反应中的电化学反应机理。

Most likely to use superconducting elements - niobium.

最易应用的超导元素——铌。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。