hielmite是什么意思

网络释义

用法例句

In the paper the long-range prediction of the pegmatite-type columbotantalite in FuTou-Xialiuyuan area of Northern Fujian is under discussion according to the characteristic analysis,model analysis,variant selection and the classification of association degree.

通过特征分析模型分析和变量选取及关联度分级,对闽北地区头—下柳源一带伟晶岩型铌钽矿产进行远景预测研究。

General situation of tantalum-niobium ore resource and advances of mineral processing technology of tantalum-niobium ore;

钽铌矿资源概况及选矿技术现状和进展

A new process called ore blending-KOH molten salt decomposition-water leaching was first put forward for the processing of a low-grade refractory tantalum-niobium ore.

首次提出采用"配矿-KOH 熔盐分解-水浸出"的新工艺来处理低品位、难分解钽铌矿。

Mineral Characterize and Synthetic Utilization of Tantalum and Niobium Tail Sand

钽铌矿尾砂的矿物特征及其综合利用

Design and Research on Tailing Pond Closure in a Certain Ta/Nb Mine

某钽铌矿尾矿库闭库整治工程设计研究

At present, most of Ta-Nb ores are processed by use of gravity concentration, with which the recovery of fine-grained Ta-Nb mineral is very low.

目前钽铌矿的选矿多以重选为主，但重选法选别细粒钽铌矿的回收率非常低。

The determination of balance grade for profit and loss of production plan making in Yichun Ta Nb mine;

宜春钽铌矿生产计划盈亏平衡品位的确定

Study on Comprehensive Utilization of Weak-albitization Granite Tantalum-niobium Ores

某弱钠化花岗岩型钽铌矿综合利用研究

RESEARCH AND APPLICATION ON DRILLING AND BLASTING PARAMETERS OPTIMIZATION IN YICHUN TANTALUM-NIOBIUM MINE

宜春钽铌矿凿岩爆破参数优化研究及应用

Analysis of Metallic Elements in Refractory Tantalum-Niobium Slag by ICP-AES

ICP-AES法测定难分解钽铌矿渣中多种金属元素

niobate-titanate-tantalate ore

铌酸盐－钛酸盐－钽酸盐矿

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

一种黑色矿物，是铌、钽矿石。

The Procession and Performance Investigation of Ni-Ta Tailing Glass-Ceramics;

铌钽尾矿微晶玻璃的制备与性能研究

GEOLOGY AND PROSPECTING POTENTIALITY OF DANZHU NB-TA MULTIMETALLIC DEPOSIT IN GONGSHAN,YUNNAN

云南贡山丹珠铌钽多金属矿床地质及找矿潜力

THE ORE-PROSPECTING EFFECT OF RADON GAS SURVEY ON THE OUTSKIRTS OF THE LIMU Sn,Nb,Ta ORE DEPOSIT

氡气测量在栗木锡铌钽矿外围的找矿效果

BULK MICROANALYSIS OF RE-NIOBATE (TANTALATE) MINERALS--A METHODOLOGICAL STUDY

微量稀土铌钽酸盐矿物全分析方法的研究

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。

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。

Synthesis and Properties of New Layered Perovskites A_2Ta_xNb_(6-x)O_(20) Series Photocatalytic Compouds;

新型层状钙钛矿复合材料铌钽钙酸系列的合成及性质研究

Study on Synthesis and Structure Compatible of New Series Complex Perovskite-type Compounds and Its Formation Regularities Its Dielectric Microwave Properties;

系列复合钙钛矿结构铌钽酸盐的合成及其介电性能的研究

Preparation, Structure and Dielectric Properties of Hexagonal Layered Perovskite-like Niobate and Tantalate Ceramics;

六方层状类钙钛矿铌钽酸盐陶瓷的制备、结构与介电性能研究