niobium (Nb)是什么意思

用法例句

Microstructure control of low carbon Nb-microalloyed fine grained dual phase steel;

低碳含铌细晶双相钢的组织控制

Influence of Nb on wear resistance of surfacing metal of high Cr cast iron;

铌对高铬铸铁堆焊层耐磨性的影响

Effect of Cu and Nb on Microstructure and Mechanical Property of Multi-layer Weld Metal;

铜和铌对多层焊焊缝金属显微组织和硬度的影响

Influence of carbon and niobium on microstructures and properties of Inconel 718 alloy deposit coating;

碳、铌对Inconel 718合金熔敷层组织与性能的影响

A reversed-phase high-performance liquid chromatograhic method for the determination of alu-minium(Ⅲ),l chronium(Ⅲ),niobium(Ⅴ)and copper(Ⅱ)with sulfochlorphenol S was developed.

用氯磺酚Ｓ作柱前显色剂以反相高效液相色谱法测定铝（Ⅲ）、铬（Ⅲ）、铌（Ⅴ）、铜（Ⅲ）离子，固定相为Ｓｈｉｍ－ｐｏｃｋＯＤＳ柱（１５０ｍｍ×６ｍｍ）。

Research on Method for Fast Determination of Al,P in Ferroniobium;

铌铁中Al、P的快速测定方法研究