镍的

The technical conditions of electrodeposition of nickel are gained.

研究在化学沉积发泡镍上电沉积镍的阴极过程。

Eramet Nickel is established as the world reference for production and supply of nickel chloride hexahydrate.

Eramet Nickel是六水氯化镍的生产供应商。

The method for the determination of nickel in stainless steel by rapid spectrophotometric with diacetyldioxime is set up.

建立测定不锈钢中镍的丁二酮肟快速光度法。

Nickel prices in the March 8 rose to 16,565 U.S. dollars.

镍的价格在3月8日上升到了16565美元/吨。

So the research and development of electroless plating nickel have great significance.

因此，对化学镀镍的研究和开发具有重要意义。

This method is simple, rapid, accurate and sensitive which is suitable for microdetermination of nickel.

该方法简单、快速、准确度和灵敏度高，适用于微量镍的测定。

The second problem is the adherence between gold and nickle base.

其次是金与底层镍的结合力问题。

In this paper, production process of copper sulphate and crude nickle from waste electrolyte.

介绍了废电解液除杂制取硫酸铜和粗镍的主要工艺条件及试验结果。

The effects of such parameters as temperature, pH, feeding rate,concentration, [NH_3]_T/_T molar ratio, surfactants and agitation, on the morphology and size of the particles, were studied and conclusions obtained are as follows:(1) The morphology and size of the particles are mainly decided by the species of nickel oxalates present.(2) Speeding up dissolution-recrystallization process benefits the preparation of the particles of being composed of a single species with uniform morphology and high aspect ratio.(3) The variations of nucleation and growth supersaturation under different conditions have definite effects on the morphology and size of the particles.(4) Adding PVP25 at a proper amount is beneficial to the preparation of fibrous nickel oxalate particles with high aspect ratio. 3 The formation mechanism as well as the morphology and size control of fibrous cobalt oxalate particlesThe cobalt oxalate particles with fibre morphology were prepared using CoCl_2 solution and mixed(NH_4)_2C_2O_4, NH_3·H_2O solution by a double jet process.

研究了温度、pH值、加料速度、浓度、[NH_3]_T/_T摩尔比、表面活性剂及其添加量、搅拌等对颗粒形貌与粒度的影响，主要结论为：(1)草酸镍化合物种类是决定颗粒形貌与粒度的最主要因素；(2)提高陈化中溶解—再结晶速度，有利于得到物相单一，形貌规整，轴向比大的粉末；(3)不同条件下，颗粒形核与生长过饱和度改变，也会对粉末形貌与粒度产生一定影响；(4)适量添加PVP25有利于大轴向比纤维状草酸镍的制备。3纤维状草酸钴的形成机理及其形貌与粒度控制采用CoCl_2溶液与(NH_4)_2C_2O_4和NH_3·H_2O混合溶液并流加料合成的方法，研究了纤维状草酸钴的制备。

The failure law of FeCl_3 solution is studied by measuring redox potential of the etching solution.

通过测定腐蚀液的氧化还原电位的变化，研究了FeCl3腐蚀液的失效规律，并以还原铁粉为置换剂，去除含镍的FeCl3腐蚀液中的镍组分。

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。