焦磷酸盐

The effect of current density on the composition, structure and morphology of Ni-W alloy electrodeposit obtained in pyrophosphate bath were studied by the methods of spectrophotometry, X-ray diffraction and metallurgical microscope.

采用分光光度法、X射线衍射和金相显微镜等方法研究在焦磷酸盐体系中，电流密度影响下所获得的Ni-W合金电沉积层的组成、结构和表面形态。

It is formed from ATP and 5-phosphoribosyl pyrophosphate in a complex biosynthetic pathway.

由 ATP 和5-磷酸核糖基焦磷酸盐通过复杂的生物合成途径合成。

A new technique of imitating gold plating by substituting pyrophosphate for toxic ayanide was reported.

报导了一种用焦磷酸盐代替剧毒氰化物的仿金电镀新工艺。

A low pyrophosphate and a high urinary pH and uric acid excretion results in ammonium urate stone formation .

低焦磷酸盐和高尿PH值和尿酸排泄导致尿酸铵结石形成。

To improve the product quality and production efficiency and reduce the production costs, the pyrophosphate rolling copperplating process has been developed, the impact of the composition of plating liquid and process conditions on the performance of the plating layer has been studied and plating liquid formation and process conditions have been determined.

为提高产品质量和生产效率，降低生产成本，研究开发了焦磷酸盐滚镀铜生产工艺，研究了镀液的组成及工艺条件对镀层性能的影响，确定了镀液配方及工艺务件。

The optimal process of chemical conversion treatment for AZ91D magnesium alloy in the alkaline bath containing pyrophosphate and stannate was determined by the orthogonal experiments.

通过正交试验确定了以焦磷酸盐和锡酸盐为主要成分的镁合金化学转化处理的最佳工艺。

When electroplating zinc, zincate zinc plating was carried out at 30℃by 3.0 A.dm~(-2) for 20 min, highly compact zinc coating can be obtained, but the additives play an important role.

焦磷酸盐镀锌时，电流密度在1.0~3.0 A.dm~(-2)下电镀时间超过10 min，镀层达到较致密的镀层。

Keywords vanadyl pyrophosphate;catalyst;additives;selective oxidation;maleic anhydride

氧钒基焦磷酸盐；催化剂；添加剂；选择性氧化；顺酐

The processing parameters include the plating bath pH value,current density,air agitation and bath temperature.

详细介绍了焦磷酸盐镀铜工艺的前处理过程，讨论了镀液pH值、电流密度、空气搅拌及温度等工艺条件对镀层质量影响。

The series of catalysts for dehydrogention of n-butane to 1-butene, including oxidative dehydrogenation with Vanadium-based 、molybdates、metal pyrphosphates catalysts and catalytic dehydrogenation with Pt-based catalysts and ZSM-5 zeolite, are reviewed, the membrane reactor with catalysts is also discussed .

综述了对正丁烷脱氢制备正丁烯的催化剂体系，包括有氧脱氢中钒基催化剂、钼酸盐系列和焦磷酸盐系列催化剂；催化脱氢中贵金属Pt系催化剂、以ZSM-5分子筛为载体的催化剂以及膜反应器。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。