钨酸

It is indicated that H2O2 and ethanol are coordinated with tungstic acid,which makes sols stable.

实验结果表明，双氧水和乙醇与钨酸络合，使溶胶稳定。

TiO2-WO3 photocatalyst powder was made from TiO2 powder and soluble tungstic acid.

以离子交换法获得的可溶性钨酸溶液与TiO2为原料，制备了TiO2-WO3复合光催化材料。

The phase composition, morphology and specific surface area of the products can be controlled by the molar ratio of citric acid to tungstic acid n(subscript cit/n(subscript TA.

通过调节柠檬酸与钨酸的物质的量的比n(下标 citn，可以控制产物的组成、形貌和比表面积。

This is by the phosphor in the nature of chemicals contained in the set, for example, tungstic acid coated magnesium, fat, blue light, cadmium borate painted light red hair color.

这是中集在中，例如，钨酸镁涂层，脂肪，蓝光发光的化学性质，镉，硼酸画淡红色的头发颜色。

The inventors of APT technology offer the most innovative T-shaped and rugged bi-directional shaped Annubar sensors.

仲钨酸铵技术的发明者提供最具创新性的T形和坚固的双向型阿牛巴传感器。

Crystal,stimulated Raman scatting,upconversion,thurum,zinc tungstate

晶体，受激拉曼散射，上转换，铥，钨酸锌

The mainly conclusions in our research are as flowing: tungsten trioxide powders with 100 nm primary particle are obtained by spray drying,calcination and wet milling process, and an average size of quadric particle composed of agglomerated particles is 0.64 μm; tungtsen powders with 39 nm grain size and 60 -100 nm primary particle are produced directly from previous tungsten trioxide using one step reduction in hydrogen at 700℃, and an average size of quadric particle of tungsten powder is 2.91 μm; tungsten trioxide and copper tungstate compound powders with 100 nm - 200 nm primary particle are produced using ammonia metatungsten and copper nitrate as raw materials by spray drying,calcination and wet milling process;the compound powders are transformed completely into tungsten and copper compound powders by reduction in hydrogen at 700℃,in which tungsten grain size is 59 nm and copper grain size is 51 nm; primary particle size of compound powders is 80 - 120 nm,and an average size of agglomerated quadric particle is 1.86 μm; tungsten nitride powders with 35 nm grain size are prepared from tungsten trioxide powders by nitrogen treatment thoroughly in pure ammonia at 650℃, and an average size of agglomerated quadric particle is 0.64 μm in normal temperature.

研究结果表明：采用喷雾干燥—焙烧—球磨工艺可以制备出粒度约为100nm的WO_3粉体，它们在团聚后形成的二次颗粒平均粒度为0.64μm；采用一步直接氢还原方法可在700℃下从上述WO_3粉体制备出晶粒尺寸为39nm的、一次颗粒粒度为60-100nm的W粉体，其二次颗粒的平均粒度为2.91μm；以偏钨酸铵、硝酸铜为原料，采用喷雾干燥—焙烧—球磨工艺可制备出一次粒度为100-200nm的WO_3和CuWO_4混合粉体；采用氢还原工艺可在700℃下将这种粉体完全转变为W、Cu复合粉体，其中W的平均晶粒粒尺寸为59nm，Cu的平均晶粒尺寸为51nm；复合粉体的一次颗粒尺寸为80-120nm，在常温下团聚后形成的二次平均粒度为1.86μm；采用纯氨氮化工艺可以在650℃下由WO_3粉体制得WN，其晶粒尺度为35nm，在常温下团聚后的二次平均粒度为6.4μm。

The concentration of sodium tungstate impacts on the activation energies notably. The activation energies increase the concentration of sodium tungstate is improved.

研究取得以下成果： 1在化学镀Ni-Co-P磁性薄膜的配方中添加钨酸钠可以显著提高沉积速率和镀膜的磁性能。

The epoxidation of α-pinene and β-pinene by 50% hydrogen peroxide and a small amount of sodium tungstate, in the presence of quaternary ammonium salt A-1 as a phase transfer catalyst, is carried out.

摘 要：采用季铵盐A-1作相转移催化剂，质量分数为50%的H2O2作氧化剂，三氯甲烷作溶剂，在加入少量钨酸钠的条件下，实现了α-蒎烯和β-蒎烯的环氧化反应。

Epoxysuccinic acid was synthesized from maleic anhydride using sodium tungstate as catalyst and hydrogen peroxide as oxidizer and was characterized by IR and 13 C NMR.

以马来酐为原料，钨酸钠为催化剂，双氧水为氧化剂，合成了环氧琥珀酸，并对其进行了红外、13C核磁表征。

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。