查询词典 vanadium oxide

Synthesis of methylene-4,4'-di catalyzed by zinc oxide Various metal oxide were investigated in the synthesis of methylene-4,4'-di from ethyl carbamate, and a serious of ZnO/SiO2 catalysts were prepared by deposition-precipitation method.

氧化锌为催化剂合成4，4'-二环己基甲烷二氨基甲酸乙酯以氨基甲酸乙酯和4，4'-二环己基甲烷二胺的反应体系为研究对象，在考察多种金属氧化物活性的基础上，使用沉积沉淀法制备了一系列硅胶负载氧化锌催化剂，并对其催化性能进行了研究。

The flame retardant asphalts were prepared with Liaohe AH-70 type high-quality paving asphalt as feedstock,decabromo-diphenyl oxide,decabromo-diphenyl ethane,antimonous oxide et al as flame retardants,aluminum hydroxide as smoke inhibitor and drawing off oil high in aromatics as dispersion medium under the condition of heating and mixing.

以辽河AH-70高等级道路沥青为原料，十溴联苯醚、十溴联苯乙烷、三氧化二锑等为阻燃剂，氢氧化铝为抑烟剂，富含芳烃的抽出油为调和剂，在加热搅拌的条件下，制得了阻燃沥青。

In this paper, the development of trace vanadium element in chemistry and life science has been reviewed.

本文概述了微量元素钒在化学和生命领域中的研究进展。

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。

Vanadium, boron, nickel, silicon and other elements are present in very small amounts in the body.

钒，硼，镍，矽和其它元素存在於非常小的数额在体内。

The kinetic parameters of vanadium catalytic oxidation of azomethine H by bromate have been determined by using spectrophotometric method .

以酸性介质中痕量钒催化溴酸钾氧化甲亚胺 H显色反应为对象，利用光度法研究了反应的动力学参数。

We specialize in manufacturing of complete range of hand tools, specially Spanners made from Chrome Vanadium Steel.

我们专业生产全系列的手工具，特别是各种铬钒钢材料的扳手。

Unlike most other green stones, which owe their colour to chromium or vanadium, chrysoprase derives its colour from nickel.

不像一般绿宝石等，颜色以铬或钒风马牛不相及，其颜色衍生自chrysoprase镍。

Suitable metals and alloys include aluminium, bronze, beryllium, chromium, columbium, constantan, copper and copper alloys, gold, nickel and nickel alloys, lead, magnesium, molybdenum, niobium, platinum, silver, stainless steel, mild steel, tin, titanium, tungsten, vanadium, zinc and zirconium.

适用于金属和合金包括铝，铜，铍，铬，铌，镍铜合金，铜及铜合金，金，镍和镍合金，铅，镁，钼，铌，铂，银，不锈钢，低碳钢，锡，钛，钨，钒，锌，锆。

However, in (11), four vanadium atoms are almost coplanar.

而在(11)中，四个钒原子几乎在同一平面上。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。