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The effect of bath composition,operating conditions and additives on Sn content of electrodeposits during the process of Sn-Ni alloy electroplating in alkaline baths had been studied.

在研究碱性锡镍合金的电沉积过程中，讨论了镀液中各成分的含量、电镀工艺条件的改变及添加剂对锡镍合金镀层成分和外观的影响规律。

On the basis of the advantages of zinc-iron base alloys, this dissertation trys to prepare Zn-Fe and Zn-Fe-P electrodeposits and studies the basic rules of electroplating them. The main subjects of this dissertation included are as follows

基于此，本文研究了Zn-Fe和Zn-Fe-P合金镀层的电沉积工艺及其理论，在钢铁表面得到了兼具防护和装饰作用的Zn／Fe基合金镀层。

Composite electrodeposits of nickel-cobalt-tungsten carbide were prepared by adding tungsten carbide particles in the nickel-cobalt alloy solution.

研究了在镍钴合金镀液中加入碳化钨微粒形成镍－钴－碳化钨复合镀层的共沉积过程。

The results showed that the W content in the electrodeposits rose with the increasing of cathodic current density in the solution containing ammounium citrate as complexing agent,whereas the current efficiency remained approximately constant. When the current denisity was higher than 15 A/dm2, the W content in the alloy was not obviously changed, but the current efficiency remarkably decreased.

结果表明，在以柠檬酸铵为络合剂的镀液中，沉积层的W含量随电流密度的增大而增加但电流效率变化不大，当电流密度超过15A/dm2后，镀层的W含量不再发生明显的变化而电流效率却明显降低。

While high quality deposition from trivalent chromium electrolyte could only be sustained for short periods and thin deposits obtained of decorative value only, it is difficult to substitute heaxvalent chromium plating in engineering electrodeposits by trivalent chromium plating at all.

因此，本文在电沉积出镍-铁合金纳米晶的基础上，采用脉冲电沉积的方法研究了在三价铬体系中获得纳米晶铬和铬-镍-铁合金纳米晶厚镀层的工艺及其基础理论，以期解决三价铬镀液完全代替六价铬电镀的难题。

The influences of concentration of SiCp, temperature, pH value of the plating solution and current density on ratio of the electroformed layer were studied.

研究在Q235钢表面上复合电铸铁基SiCp摩擦材料的制备工艺，探讨了镀液中SiCp的浓度、电流密度、pH值和镀液温度对电铸层中SiCp含量和电铸层性能的影响规律。

The relationship between coating microstructure and electromagnetic properties of electroformed Ni-Fe alloy s was studied.

研究了电铸镍铁合金制备过程中工艺条件对电铸层成分的影响，获得含铁质量分数20%电铸层的最佳工艺条件为镀液硫酸亚铁含量6g/L、pH值2.5、温度55℃、电流密度3.5A/ dm~2；讨论了镀层形貌及电磁性能的变化关系。

In the gloomy domed livingroom of the tower Buck Mulligan's gowned form moved briskly about the hearth to and fro, hiding andrevealing its yellow glow

在塔内那间有着拱顶的幽暗起居室里，穿着浴衣的勃克·穆利根的身姿，在炉边敏捷地镀来镀去，淡黄色的火焰随之忽隐忽现。

In the gloomy domed livingroom of the tower Buck Mulligan's gowned form moved briskly to and fro about the hearth, hiding and revealing its yellow glow.

143在塔内那间有着拱顶的幽暗起居室里，穿着浴衣的勃克。穆利根的身姿，在炉边敏捷地镀来镀去，淡黄色的火焰随之忽隐忽现。

The electrochemical behavior of three kinds of Schiff base brighteners (DL01, DL02, DL03) and CoSO4 in sulfate laths for electroplating of bright tin and tin-cobalt alloy coatings was investigated using linear potential sweep.

为了研究3种希夫碱光亮剂(DL01、DL02、DL03)及CoSO4在电镀时的电化学行为，采用线性电位扫描法测定了含新型添加剂的硫酸光亮镀锡、锡钴合金镀液的极化曲线。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。