钒的

Thermochromic properties of vanadium dioxide thin films are applied to solar energy materials, photoeletric switch and bolometer materials for the uncooled microbolometers due to their high temperature coefficient of resistance at room temperature.

中文摘要具热致变特性之VO2薄膜因在室温附近有明显的相转变现象，同时发生光电性质的急遽的转变，且在室温之下有较高的电阻温度系数，所以在一系列氧化钒化合物中格外被受瞩目；VO2因这些性质而被广泛应用於太阳能控制材料、电学开关、光学开关及非冷却型辐射热感测器等半导体元件之中。

On the basis of researching catalyst,the isomerization reaction of nerolidol wasinvestigated in detail,and then the optimum technical conditions are selected toprepare farnesol in a higher yield.

同时研究了催化剂——原钒酸酯以及目的产物的物理性质和化学性质，探讨了合成金合欢醇的可能反应机理和可能产物的化学结构，取得了令人满意的结果。

Results indicate that TiC-VC particles can be produced by direct metallurgical reaction between ferrotitanium, ferrovanadium and graphite during the laser cladding process.

研究结果表明，通过钛铁、钒铁与石墨之间的反应，可以得到TiC-VC复合碳化物增强相，细小的TiC-VC复合碳化物颗粒弥散分布在Fe基体之中，合金熔覆层的耐磨性在一定范围内随增强颗粒的增加而提高。

A Intercalary behavior of different molecular weight of PEG such as 2 000, 4 000 and 6 000 in VXG was studied. The intercalation of polymer increases the layer distance of host and occurs cooperative effect with it.

研究比较了2 000、4 000、6 000三种不同分子量的水溶性聚合物聚乙二醇在五氧化二钒干凝胶层状氧化物中的嵌入，PEG的嵌入增加了主体层状物的层间距并与主体材料发生协同作用。

With the RoHS promulgated by European Union and the enhancement of human environmental pro- tection consciousness,leadless low-melting glasses is getting more and more attention.

概述了无铅低熔玻璃的国内外研究现状，对无铅硼酸盐，磷酸盐、钒酸盐玻璃等体系的组成以及物化性能进行了较为全面的介绍，并分析了无铅低熔玻璃今后发展的难点和趋势。

Various kinds of steel such as structure steel, tool steel, pipe line steel, reinforcing steel bar, common engineering steel and cast iron may be improved in their properties by vanadium nitrides and carbides.

已有的研究表明碳氮化钒添加于钢中能提高钢的耐磨性、耐腐性、韧性、强度、延展性和硬度以及抗热疲劳性等综合机械性能，并使钢具有良好的可焊接性能，而且它能起到消除夹杂物等作用，在高强度低合金钢中的应用效果更加明显。

A highly selective and stable ethanol sensor was designed based on the intrinsical layered structure of vanadium pentoxides and the advantages of nanobelts.

基于五氧化二钒晶体本身的层状结构特点和纳米带的特殊性，设计制备了具有较高选择性和稳定性的气敏传感器。

Cells have demonstrated over 500 cycles and good power capability. For a six-electron reduction of the vanadium oxide the reaction is

电池展示了500次循环和好的功率输出能力。6个电子转移的钒氧化物的过程是

The miners could stand that but they hated the fact that frameworks, steel rods, valuable vanadium, rust-resisting steels and timber supposedly taken from the mines for defense works, seldom went into defense works but went by cart to Mukden for sale.

就是这样，工人们也还可以忍受，但使他们极为反感的是，蒋军军官以修工事为名，从矿上搞走的框架、钢条、贵重的钒、不锈钢和木材，很少真正用于构筑工事，而是装上大车拉到沈阳去卖钱。

Pig iron, the matrix consisted of more than 95% pearlite and a little amount of cementite also, whereas the graphite was of larger type-A, and the tensile strength and the hardness were of 202~238MPa and 220~237HB, respectively; when the metallic charge was 23% V-Ti pig iron plus 77% N.I.

研究钒钛生铁和球铁生铁对Cr-Cu-Mo可淬硬铸铁凸轮轴显微组织和性能的影响，讨论了D型石墨的形成机理以及D型石墨灰铸铁凸轮轴具有较高强度和较高硬度的原因。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。