查询词典 tungstic

A salt of tungstic acid .

氢碘酸形成的一种盐或酯。

A salt of tungstic acid .

烷基苯形成的磺酸盐。

The reaction results show that the catalytic activity and selectivity of W-HMS prepared with tungstic acid is better than that prepared with sodium tungstate. And the consumption of t-BuOH also is successfully reduced.

实验结果表明：钨酸是制备W-HMS催化剂很好的钨源，以钨酸为原料制备的催化剂具有很高的催化活性和选择性，使溶剂叔丁醇用量大为减少。

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。

A salt of tungstic acid .

一种酸，因其形成的盐和酯而为人所知。

A salt of tungstic acid .

一种水溶性弱酸，氰胺盐的母酸。

Monodispersed tungstic acid nanoparticles with an average diameter of 20 nm were prepared by a ultra-violet light irradiation of oxotungsten-citrate complex aqueous solution.

通过紫外光照射柠檬酸钨氧配合物水溶液，制备了平均粒径约为20nm的单分散钨酸纳米颗粒。

Hydrogen peroxide(H_2O_2)was used as oxidant,oxalic acid as complexing agent and tungstic acid (H_2WO_4)as catalyst.

研究了以环戊烯为原料、草酸为有机络合剂、H2O2为氧化剂，在催化剂钨酸(H2WO4)的作用下一步合成戊二酸的绿色新过程，考察了氧化剂的含量、反应物配比、催化剂用量、反应温度、反应时间等对反应的影响。

A salt of tungstic acid .

硫氰酸的一种盐，当碱性氰化物被硫磺溶解时形成。

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。