查询词典 nickel-plate

There may be exist reversible transitions among humic acid, fulvic acid and humin for variation of ultra-violet of peat or humin into nickel solution.

泥煤或胡敏素镍溶液紫外光谱的变化说明胡敏酸、富里酸和胡敏素3者之间或许存在可逆转化。

Keywords Peat;Humin;Nickel;Adsorption;pH

泥煤； 胡敏素；镍；吸附； pH

Kirschner wire plus tension band fixation ate inferior to transverse fixation, but in comminuted fracture it can induce wore complications: despite of wide application, nickel titanium patella fixator is unsuitable for comminuted fractures due to its hypersensibility and carcinogenicity; silk or steel wire loop fixation fits various comminuted fractures, hut metal cerclage is predisposed to induce infection and breakage because of insufficient fixation force.

克氏针＋张力带固定粉碎性骨折不如横行骨折固定确切，且并发症较多；镍钛－聚髌器适用范围较广，但是其材料的过敏性与致癌性限制了其应用，并且它也无法适用于各种粉碎性骨折；丝线或钢丝环扎可适合各种类型的粉碎性骨折，但是其固定力量不足，金属环扎尚容易产生感染、断裂等并发症。

An "indicator" condition for nickel excess which is quite distinct from yellow-green or yellow interveinal chlorosis caused by simple iron deficiency.

镍中毒的燕麦叶片：脉间几乎都是带有斜斑的白带；镍过剩的显示症状不同于由单独缺铁引起的脉间褪绿黄绿化或黄化。

Methods By the datas from measuring 20 cases of dried adult lumbar spine specimens, to design a integer-type of aliform-shape memory alloy intrasegmental fixation instrument, according to the favourable shape-memory ability and the distinct biomechanics-characteristics of nickel-titanium shape memory alloy, then to research its material mechanical property and finite element method analysis.

依据干燥完整的成人腰椎标本相关解剖数据的测量结果，利用镍钛记忆合金良好的形状记忆功能和独特的生物力学特征设计一种整体型翼状腰椎峡部裂记忆合金节段内固定器，并进行材料力学测试和有限元分析。

A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.

通过对包含以下成分的含水酸性液体进行干燥，可以在金属上形成无铬的转换涂层，该涂层与普通铬酸盐转换涂层相比，至少在抗腐蚀质量上等效：$_一种阴离子成分，所述各个阴离子包括至少4个氟原子，至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子，任选地1个或多个氧原子；$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分，上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5；$_足够的游离酸以使该组合物的pH值在0.5～5.0的范围内；$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分；$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分，优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。

Before impregnating nickel, the addition of 3wt% lanthana into Ni/SiO2 could enhance the activity, selectivity and stability of catalyst apparently.

采用先浸渍方式向催化剂中引入含量为3wt%的镧助剂后，镍基催化剂的催化加氢活性、选择性和稳定性得到了很大幅度的提高。

Presented a new method for producing hydrogen using formic acid as the new material,which has not been reported,investigated the feasibility of adopting nickel as the active component of the catalyst for formic acid reaction for hydrogen production,analyzed the effect of using magnesia and lanthana as co-catalyst on the resistance to carbon formation.

以甲酸为原料制取氢气，考察了镍作为甲酸制氢催化剂活性组分的可行性以及镁和镧作为助催化剂的抗析碳作用。

We provide the Leadway connector and contact . We can produce tooling , die casting part , stamping part , CNC machining part , plastic injection part according to customer drawing or sample . Meantime , the plating (such as: gold plating , silver plating , nickel plating ,zinc plating ) is done by ourselves .

我们可以供应领先牌连接器、领先牌端子，我们可根据客户的图纸或样品和要求供应各种金属压铸件，冲压件，注塑件，数控加工零件、模具的设计与制作，我们还有提供表面电镀处理的服务（镀金、镀银、镀镍、镀锌等）。

The optimal concentration of EDTA in extracting nickel and cobalt was 1~10mmol/L, those of citric acid and malonate were 10~30mmol/L.

柠檬酸、丙二酸活化土壤中Ni、Co的最佳浓度浓度范围在10~30mmol/L之间。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。