铌的

The different opinions for the mechanism of light amplification in iron doped lithium niobate exist always.

掺铁铌酸锂晶体中的光放大机制问题一直存在不同的观点和争议。

The result showed the niobic acid has high catalytic activity and stability when it is used as solid acid catalyst and support, and it can be used more widely.

结果表明，无论是作为固体酸催化剂还是作为载体，铌酸都表现出较高的催化活性和稳定性，具有良好的应用前景。

The paper introduced the property of the niobic acid and its usage in esterification, hydration, dehydration, et al.

介绍了铌酸(Nb2O·5nH2O)的性质及其在酯化、水合、脱水等反应中的应用。

Tantalum'.'' oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of ''.

钽'。''氧化物组成的矿物，与铌铁矿共生，亦见于粗糙的花岗岩中，是一种''。

The results are used to the values obtained are in good agreement with the experimental results, similarly calculation of noncritical phase matching temperature for SHG gives a result which also agrees with the experimental result fairly well.

用此结果计算室温的二次谐波I类临界相位匹配角与实验值符合得很好，又计算二次谐波的非临界相位匹配温度，其结果也与实验值较符合。标签镁铌酸锂晶体折射率测量 MgO LiNbO3 crystal refractive measurements

The catalytic oxidation and catalytic esterification performances of NbFeSAPO-5 catalyst are studied with pyruvic and methanol as raw material.

结果表明：合成的分子筛具有AIPO4-5的骨架结构，并且铁、硅和铌金属杂原子进入了分子筛骨架。

Experiment is done on the acid hydrolysis of titanium-columbite-tantalite ore difficult to decompose.

对难分解的钛钽铌矿的酸分解工艺进行了试验研究。

Based on the analysis of organic geochemical characteristics, Inorganic geochemical exploration methods and nano-geochemical exploration methods were adopt to research geochemistry on the surface above the Xin Chang gas field,and it is discovered there is abnormity of trace element ,for example , Cu、Zn、Ni、V、Fe_2O_3、Ba、W、Sb、Ag、Y、Zr、La and Ba、Sr、Ti、Cu、Zn、Ni、Al、P、La series、Y、Co、W、Ag、Nb、Tl ect, showing the top effects and chimney effects,which is important to indicate gas reservoir.

本文以有机地球化学特征分析方法为基础，采用无机地球化学勘探方法和纳米级地球化学勘探方法对新场气田上方地表无机地球化学和纳米级地球化学特征进行综合研究，发现了无机微量元素铜、锌、镍、钒、三氧化二铁(Fe_2O_3)、钡、钨、锑、银、钇、锆、镧等及纳米级微量元素钡、锶、钛、铜、锌、镍、铝、磷、镧系除钷(Pm、钇、钴、钨、银、铌、铊等元素在气田上方异常特征呈现顶端效应或烟囱效应，该类元素对气田的勘探具有重要的指示意义。

In the low and high chromium molybdenum alloy steel liner, such as niobium apply to power plants, metallurgy, building materials and chemical industries such as ball mill, its integrated performance, will give customers better integrated economic benefits.

中、低、高铬钼铌合金钢衬板等适用于电厂、冶金、建材和化工等行业的球磨机，其综合性能优异，能给用户带来较好的综合经济效益。

FREDERICTON, NB -- A new type of wide tires that reduce greenhouse gas emissions by transport trucks can now operate on certain New Brunswick highways under .

fredericton ，铌-一种新型的宽轮胎，减少温室气体排放量的运输卡车，现在可以经营某些新不伦瑞克省公路下。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。