三氧化钨

Further oxidation treatment or reduction treatment of molybdenum dioxide nanowire arrays resulted in molybdenum trioxide nanowire arrays and molybdenum nanowire arrays. We fabricated WO3 nanowire arrays successfully by further oxidizing W18O49 nanowire arrays. Based on the vertical aligned zinc oxide nanowire arrays, we prepared the aligned zinc oxide/silicon core-shell nanowire arrays, zinc oxide nanowire-zinc silicate nanotube heterojunction arrays and zinc silicate nanotube arrays by adjusting the size of the templates as well as the annealing temperature.

我们通过氧化和还原处理二氧化钼纳米线阵列，分别合成了三氧化钼纳米线阵列和单质钼纳米线阵列；通过氧化W18O49纳米线阵列合成了三氧化钨纳米线阵列；利用氧化锌纳米线阵列作为模板，通过调节氧化锌纳米线模板的尺寸和退火温度，合成了氧化锌－硅同轴纳米线阵列、氧化锌纳米线－硅酸锌纳米管异质结阵列和硅酸锌纳米管阵列。

Test makes known :In the wake of oxidate reduction groing in number of number of times ,The three oxidates wolfram sizes are more and more littleer ,The size than first time oxidate queen''s gains oxide of second oxidate queen''s gains oxidate wolfram size little a lot .

实验表明：随着氧化还原的次数的增多，三氧化钨粒度越来越小，第二次氧化后所得氧化钨的粒度要比第一次氧化后所得氧化物的粒度小很多。

After As in WO3 is dissolved with NaOH solution, WO3 is coordinated by citric acid. In HCl medium, As is reduced to lwo valency As by KI and then low valency Asis reduced to gas AsH3 by SnO2 and metal Zn. After that, DDTC-Ag solution is applled as absorbent for colorimetric determinhtion.

用氢氧化钠溶液溶出三氧化钨中的砷之后以柠檬酸配位三氧化钨，在盐酸介质中用碘化钾将砷还原成低价砷，再用二氯化锡和金属锌将低价砷还原成砷化氢气体，以DDTC-Ag溶液吸收进行比色测定。

In this article,tungsten trioxide was selected as the raw material to producing ultrafine and homogenous tungsten powder by oxidation-reduction method through 5 Deoxidizations and 4 oxidations.

选取三氧化钨为原料，通过5次还原4次氧化制备出超细钨粉，所得金属钨粉的平均粒度约为0。

In this article,tungsten trioxide was selected as the raw material to producing ultrafine and homogenous tungsten powder by oxidation-reduction method through 5 Deoxidizations and 4 oxidations.

选取三氧化钨为原料，通过5次还原4次氧化制备出超细钨粉，所得金属钨粉的平均粒度约为0.38μm，比表面积高达3471.79 m~2/kg。

The original was chiefly launched that three oxidates wolfram is get to use APT''s system exceedes carefully powder research ,Moreover to the three oxidates wolfram sizes reaches such to distribute the inquirement .

本文主要开展了利用APT制取三氧化钨超细粉末的研究，并对三氧化钨粒度及其分布进行了探讨。

The main products are sodium tungstate, tungstic acid, ammonium perchlorate, tungsten trioxide, industrial ammonium molybdate, sodium molybdate, Chung-ammonium molybdate, ammonium tungsten migraine, two ammonium molybdate, barium molybdate, tungsten electrode wire cutter, cerium Tungsten welding electrode, etc., such as tungsten and molybdenum products.

主要产品有钨酸钠、钨酸、仲钨酸铵、三氧化钨、工业钼酸铵、钼酸钠、仲钼酸铵、偏钨酸铵、二钼酸铵、钼酸钡、钨绞丝电极、铈钨等氩弧焊电极等钨钼系列产品。

The process is that as follows: tungsten trioxide is reduced to tungsten powder at fi...

对于金属钨粉的氧化，低温慢速氧化可得到松散多孔状态的三氧化钨。。。

The particle size of tungsten trioxide prepared from the oxidation of tungsten powder in right conditions has nothing to do with the starting material tungsten powder.

3金属钨粉在规定条件下进行氧化，得到的三氧化钨粒度与初始原料金属钨粉的粒度无关。

In this research, tungsten trioxide as a photochromic material had been synthesized and WO3/PAA hybrid films were prepared by blending method. UV light was employed as the energy source for the photochromic reaction of the material in order to perform the NIR absorption.

中文摘要本研究成功制备三氧化钨光致变色材料，利用有机无机混掺法将三氧化钨与聚丙烯酸混掺成膜，藉由紫外光作为变色反应的驱动力，达到吸收近红外光效果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。