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niobium

美 [naɪ'əʊbiəm]英 [naɪ'əʊbiəm]

n.铌
网络铌粉；铌金属；钶

niobium

niobium

权威英汉双解英-汉英-英网络释义

niobium

n.

1

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。

4

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。

5

Platinum composite electrode was prepared that platinum was compounded on titanium , tantalum, and niobium substrates by proper technology .

铂复合电极是通过适当的工艺将铂复合在钛、钽、铌等基体上。

10

11

CHEMICAL ANALYSIS OF FERRONIOBIUM. DETERMINATION OF NIOBIUM BY X RAY FLUORESCENCE SPECTROMETRY .

铌铁合金的化学分析 .X 射线荧光光谱法测定铌含量

15

17

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。

18

A new catalyst, niobium acid, was used for the synthesis of di 2 ethylhexyl maleate with yield of 86.

研究了用新型催化剂铌酸催化合成马来酸二辛酯的工艺。

19

Using niobium acid as catalyst , cyclohexane as dehydrant, benzyl propionate was synthesized based on propionic acid and benzyl alcohol .

以铌作催化剂，环己烷为带水剂，用丙酸和苯甲醇直接合成了丙酸苄酯。

22

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。

25

alloy CMn (VNb) with additions of vanadium , niobium but no titanium (Ti002%) and.

合金添加了钒，铌，但是没有钛（钛的含量少于 0.002%）

26

The appropriate content of niobium or phosphotungstic acid was 4% (w).

较佳的铌、磷钨酸的质量分数均为 4%。

28

Brazil holds the world's biggest known niobium reserves, according to national mining department DNPM.

据巴西矿业部（DNPM ）说，巴西拥有世界最大的几个已探明铌矿储备。

29

For niobium powder and bars .

铌粉，铌条用原料。

30

a black mineral that is an ore of niobium and tantalum .

一种黑色矿物，是铌、钽矿石。

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