铌

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。

A niobium-cobalt-rare earths alloy powder was investigated,which was used to improving combined properties of valve cone surface of internal combustion engine.

研究应用稀土铌钴合金粉末材料提高内燃机气门锥面材料的综合性能。

Main mineral resources are tungsten, tin, bismuth, molybdenum, copper, iron, tantalum, niobium, lead, zinc, gold, cobalt soil, Beryl, Ying Dan, K-feldspar, quartz stone, marble, crystal stone, kaolin, etc. 48 Species, groundwater resources of the main hot water mineral water, hot spring spa resort with 13, Chung, about 1,400 cubic meters, the highest temperature of 70 degrees Celsius, with weak radioactive radon and useful elements of the human body, there are important medical value .

矿产资源主要有钨、锡、铋、钼、铜、铁、钽、铌、铅、锌、黄金、钴土、绿柱石、莹石、钾长石、石英石、大理石、水晶石、高岭土等48种；地下水资源主要有热水各矿泉水，温泉风景区热水泉眼有13处，日涌量约1400立方米，水温最高70摄氏度，含弱放射性氡和对人体有益元素，有重要的医疗价值。

Our major products are tieanium equipments、stainlesssteel equipments、tungsten heating spot、heat body、linear cutting molybdenumwire deep processing and manufacture of all sorts of standards of titanium tungsten.

本公司建立以来，形成了钨、钼、钛材产业和设备加工优势，主要产品有：钛设备、不锈钢设备、钨加热子、加热体、线切割钼丝，各种规格钛、钨、钼深加工制造，并加工钽、铌、锆、铪、镍材的棒、丝、板、带、片、泊，产品畅销全国，并远销东南亚。

ABSTRACT Lithium niobate, an excellent man-grown crystal, has many classical properties for both research and applications, such as electro-optic, acousto-optic, Thermal-optic, Piezoelectric and Photorefractive effects.

铌酸锂晶体是一种优良的人工晶体，它具有很多重要的性质如经典的电光效应、声光效应、热电效应、压电效应、弹光效应、光折变效应等等，而且在这些方面几乎都有很重要的应用。

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

一种黑色矿物，是铌、钽矿石。

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。

The Zircaloy substrates were prepared with different pretreatment, then Cr films with the thickness of 0.5μm l.0μm 2.0μm 3.1 μrn and Cr/Nb Nb/Cr binary films were deposited with the same deposition parameters.

锆合金板基体经过不同的预处理后，采用直流磁控溅射方法，在相同的沉积参数下在其表面沉积了0.5μm、1.0μm、2.0μm、3.1μm厚度不等的纯cr薄膜以及Cr和铌的复合薄膜。

This paper studies the technology and properties of 60AT NbRE microalloy point rails heat treatment that rail head was heated by medium frequency induction and cooled by pressure air.

AT尖轨全长热处理采用中频感应加热、压缩空气吹冷淬火，对 6 0AT铌稀土微合金道岔尖轨进行轨头全长欠速淬火工艺及性能的研究。

The products fit optic crystal ,optic glass,semiconductor silicon slice,quartz crystal slice ,piezoelectricity porcelain,arsenide gallium,LiNbO3,molybdenum slice and metal, nonmetal brittleness material both and single side poshing and rubbing of pressurizing components.

产品主要适合：光学晶体、光学玻璃、半导体硅片、石英晶体片、压电陶瓷、砷化镓、铌酸锂、钼片、机械密封件等金属、非金属薄脆性材料的双面、单面研磨及双面单面抛光。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐