查询词典 nickel

Environmental screws (three price white zinc, trivalent black zinc, color zinc trivalent, environmental protection, nickel, green black nickel).

环保螺丝（三价白锌、三价黑锌、三价彩锌、环保镍、环保黑镍）。

In this paper, a further study has been carried out on the hollow nickel spheres synthesized by autocatalytic reduction to find that the size distribution of the nickel spheres largely depended on the original colloidal particles and reaction incubation period.

对自催化还原法制备空心镍球的形成过程进行了较深入的研究，认为反应产物的粒径和粒度分布主要取决于原始胶核的形态以及反应孕育期的长短。

The invention provides a chemical nickel tungsten phosphorus plating solution for magnesium alloy, which consists of 10-20 g/L of nickel sulfate, 7-15 g/L of sodium tungstate, 29-50 g/L of sodium citrate, 14-30 g/L of sodium hypophosphite, 14-30 g/L of sodium carbonate, 5-12 g/L of ammonium bifluoride, additive accounting for 0.00005-0.003 percent of total weight and the balance being water.

本发明提供的是一种镁合金化学镀镍钨磷镀液。它由硫酸镍10-20g/L、钨酸钠7-15g/L、柠檬酸钠29-50g/L、次亚磷酸钠14-30g/L、碳酸钠14-30g/L、氟化氢铵5-12g/L、占总重量0.00005-0.003％的添加剂和余量的水组成。

The inhibitory effect of nickel to the reaction of H_2O_2 oxidizes bromocresol purple had been researched in the buffering medium of pH=8~9 and the method of inhibitory kinetic spectrophotometry for determining nickel had been set up.

发现了在 p H=8～ 9的缓冲介质中，Ni2 +对 H2 O2 氧化溴甲酚紫的反应有明显的阻抑作用。

A method to measure the content of nickel in the nickel iso - caprylate by complexometric titration using ethylenediamine tetraacetic acid was set up.

以乙二胺四乙酸或柠檬酸作配位剂，在无氰的硫代硫酸盐–亚硫酸盐体系中研究了金在镀镍铜基底上的电沉积。

It is concluded that the main influence factors on the micro-hardness of the nickel deposit are sulphamate concentration and electrolyte temperature. The most hard nickel deposit layer was obtained with sulphamate concentration 700g/L, cathodal current density 5A/dm2, pulse current frequency 800Hz, pulse current duty cycle 0.6, electrolyte pH value 4.0, electrolyte temperature 70℃.

试验结果表明：主盐浓度和镀液温度是影响镀层硬度的显著因素；当主盐氨基磺酸镍的浓度为700g/L，阴极电流密度为5A/dm2，脉冲频率为800Hz，占空比为0.6，镀液pH值取4.0，镀液温度为70℃时，可以制得显微硬度最高的镍镀层。

The invention relates to a way to prepare nickel, manganum and cobalt hydroxide. The method includes making the mixed solution a coprecipitate with mixed solution B in base solution C. The mixed solution A contains nickel salt, manganese salt and cobalt salt, the mixed solution B is a strong base solution, the base solution C is aqueous ammonia solution. The solution A also contains ammonium salt while solution B also contains aqueous ammonia; besides, after being mixed, the molarity of ammonia in solution A and solution B is the same with that in solution C.

一种镍锰钴氢氧化物沉淀的制备方法，该方法包括将混合液A和混合液B在底液C中进行共沉淀反应，所述混合液A中含有镍盐、锰盐、钴盐，所述混合液B为强碱溶液，所述底液C为氨水溶液，其中，所述混合液A中还含有铵盐，混合液B中还含有氨水，并且参于等当量反应的混合液A中的铵盐与混合液B中的氨水在混合液A和混合液B混合后氨的摩尔浓度与底液C中氨的摩尔浓度相等。

But copper dissolves less, and silver、nickel and iron is hardly dissoluble, because of passivation of black Ag〓S and Cu〓S layer and sulfide film of nickel and iron.

在碱性硫脲溶液中，银、铜几乎不溶解是因为黑色的Ag〓S和Cu〓S膜的钝化，铁、镍不溶解亦是其硫化物膜钝化的结果。

Nickel-titanium shape memory alloy composed of near equiatomic components of nickel and titanium is cha...

由近等原子比组成的NiTi形状记忆合金具有独特的性能：形状记忆效应和超弹性。

The text is start at the need of practical manufacture, then formulize all the process of design and manufacture the Cleaning Machine of Nickel Anode Plate, including design scheme, program projection, draw detail drawing, elaborate and equip parts, assemble equipment, arrangement of wires and debug system. Comprehensive use many theoretics and knowledge, such as mechanical equipment design, CAD technology, Programmable Logical Controller, mechanical system simulation and other applied softwares. The final aim is design and assemble an armamentarium that can clean the anode mud on the Nickel Anode Plate.

本文以满足实际生产需要为出发点，阐述了镍阳极板清理机设计和制造的全过程，包括出方案、规划设计、绘制零件图、零件加工装配、设备安装、布线及调试，综合运用了机械装备设计、CAD技术、可编程控制器、系统仿真学以及一些应用软件的理论和知识，最终目标是设计并安装制造一套清理阳极泥的机电设备。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。