铌的

Characteristic of visible spectrum was studied on niobium by contrast spectroscopic analysis.

对铌元素可见光谱进行了计算机模拟，研究了铌元素的可见光谱特征。

We are one of the biggest end user of tantalite and columbite . We need the ores at the long-term.

我们是中国最大的使用钽铌矿公司之一，我们长期需要钽矿和铌矿。

The Mo coatings is prepared by high temperature sinter of Mo powder sprayed on columbium alloys sample,and then MoSi2 coatings is prepared by pack cementation on the sample.

1引言目前铌合金抗氧化涂层主要采用硅化铌和Mo-Si2涂层，高温氧化条件下表面形成SiO2，具有"自愈合"能力，因而具有较好的抗氧化性能。

A hard gray lustrous metallic element that is highly corrosion-resistant; occurs in niobite and fergusonite and tantalite.

一种坚硬有光泽的灰色金属元素，抗腐蚀性极强，见于铌铁矿、褐钇铌矿和钽铁矿中。

The density of vacant sites on the surface of support has the effect on the dispersion state, surface acidity and catalytic activity of supported niobia catalysts for condensation reaction of isobutylene and isobutyraldehyde.

本工作较深入地描述了负载型铌氧化物催化剂表面相互作用，为深刻认识负载型铌氧化物催化剂酸催化作用和进行高效固体酸催化剂的设计和制备提供了参考依据。

Niobium suboxide anode is prepared with method similar to that for tantalum electrolytic capacitor and its electric property is investigated by electrolytic capacitor anode testing.

采用玛瑙研磨混料-还原焙烧-过筛工艺制备了低价铌氧化物粉末，用正交试验法及方差分析对工艺条件进行了优化，用XRD、SEM测试方法对产物物相、微观形貌进行了研究；按与钽电解电容器相似的工艺将低价铌氧化物粉末制成了阳极，并采用电解电容器阳极测试方法对其电性能进行了研究。

The niobium suboxide powder was prepared by NbH reduction Nb2O5procedure, pressing to the mould, sintering and oxidation of the niobium suboxide anode, and niobium suboxide for capacitor anode with good electrical property was obtained.

摘 要：采用NbH还原Nb2O5工艺制备低价铌氧化物粉末，经压制成型、阳极烧结、阳极氧化工艺，获得电性能优良的低价铌氧化物电解电容器阳极。

Combining with the production control of low-alloy steel with niobium , the main reasons of surface transverse crack of low-alloy steel slab with niobium were put forward.

介绍了铌元素的作用和行为及在常见钢种中的作用，结合含铌低合金钢的生产控制，分析出造成含铌低合金钢连铸坯表面产生横裂纹的主要原因，并采取相应的技术措施，提高铸坯表面质量。

This article is divided into seven parts, the first part is the structure of LiNbO ; The second part is the basic physical property (especially for optical property); The third project is for the mix substance which takes some operation for LiNbO crystal; The 4th and 5th part for cyclical polarization niobic acid lithium crystal synopsis and application; The sixth part for Laman spectrum synopsis and the seventh part is the something about experiment.

本文共7部分，第1部分为铌酸锂晶体的结构；第2部分为基本物理性质；第3部分为铌酸锂晶体的掺工程；第45部分为周期极化铌酸锂晶体的简介及应用；第6部分为拉曼光谱简介；第7部分为实验部分。

This article is divided into seven parts, the first part is the structure of LiNbO ; The second part is the basic physical property (especially for optical property); The third project is for the mix substance which takes some operation for LiNbO crystal; The 4th and 5th part for cyclical polarization niobic acid lithium crystal synopsis and application; The sixth part for Laman spectrum synopsis and the seventh part is the something about experiment.

本文共七部分，第一部分为铌酸锂晶体的结构；第二部分为基本物理性质；第三部分为铌酸锂晶体的掺工程；第四五部分为周期极化铌酸锂晶体的简介及应用；第六部分为拉曼光谱简介；第七部分为实验部分。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。