铌

Finally,We investigated the non-resonant ultrafast 3~order nonlinear optical properties of niobic tellurite glass(80TeO_2-20Nb_2O_5)doped with silver chloridenanocrystals.

最后，我们研究了掺杂1%浓度氯化银纳米晶体碲铌氧化物玻璃的非共振三阶非线性光学特性。

Er3+-doped (100-x)TeO2-xNb2O5 (x=5,10,15,20 mol%) niobic tellurite glasses were synthesized, and their density, refractive index, glass transition temperature, crystallization temperature, Vickers microhardness, absorption spectra, fluorescence spectra and the lifetimes of Er3+∶4I13/2 level were measured.

熔制了掺铒碲铌玻璃样品100-XTeO2-XNb2O5(X=5，10，15，20 mol%，测试了其密度、折射率、转变温度、析晶温度、维氏机械强度、吸收光谱、荧光光谱、荧光寿命等参量。

The experimental method and reaction conditions for synthesis of acetals and ketals on more than 40 catalysts such as solid superacids、 heteropoly acids、 con-exchange、 resins、 molecular sieves、 niobic acid、 vitamin C、 iodine、 sulfate、 chloride、 montmorillonite and etc.

综述了固体超强酸、杂多酸、固载杂多酸、脱铝超稳沸石、树脂、分子筛、铌酸、漆酚衍生物、维生素C、碘、硫酸盐、氯化物、蒙脱土等40多种催化剂催化合成缩醛的方法和反应条件。

Niobic acid; catalytic synthesis; di-2-ethylhexyl phthalate; di-n-octyl phthalate; di-2-ethylhexylmaleate; di-n-octyl maleate; cyclohexene; modification of catalyst; dynamics of esterification

工程科技I，化学，有机化学铌酸；催化合成：邻苯二甲酸二辛酷；邻苯二甲酸二异辛酯；顺丁烯二酸二辛酯：顺丁烯二酸二异辛酯：环己烯；改性；动力学

The effect of several representative collectors on the synthetic niobite in the condition of variable pH values and dosages were studied in the paper.

研究了几种有代表性的捕收剂在不同矿浆pH值和捕收剂用量条件下，对人工合成的铌铁矿的捕收效果。

The selective depression performance of four type depressants for niobite and do lomite is described.

考查 4种抑制剂对铌铁矿及白云石的选择性抑制性能。

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''。

Infrared Absorption Spectrum and X-ray Photoelectron Spectrosco-py detect and analyze the adsorption mechanism of diphosphonic acid on the surface of niobite.

同时用 ias 和XPS检测和分析了双膦酸对铌铁矿的作用机理。

The fine spar contains 40 % tantalum while the tantalum niobite contains 21% tantalum.

细晶石中的钽的含量占40 %，而钽铌铁矿中的钽含量占21 %。

A mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum .

一种由铁和锰的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，是一种钽矿石。

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。