查询词典 nickel brass

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。

Company develops and manufactures chargers mainstream products are applicable to a variety of nickel-metal hydride, nickel cadmium rechargeable batteries, saturation in the charge automatically from the state-of-charge to trickle charge, but also has a discharge, detection, negative voltage control and overheating protection function, is the leading high-tech, high-end charger.

公司开发并生产的主流充电器系列产品是适用于各种镍氢、镍镉可充电池，在充电饱和状态下，自动从充电状态转为涓流充电，还具有放电、检测功能、负电压控制及过热保护等功能，是领导潮流的高科技、高档充电器。

It was composed of 75% silver and 25% copper, had a six-pointed star on one side, a Roman numeral III on the other, and — weighing in at four-fifths of a gram — was the lightest coin ever produced by the US Mint. The silver three cent piece was discontinued by the Coinage Act of 1873; at that time, a three cent nickel coin was issued, made up of copper and nickel and slightly larger than the silver version.

改硬币是由75%的银和25%的铜铸造，图案的一面有一个六角星，另一面是罗马数字III，重量只有1克的5分之4 -这枚硬币是美国造币厂有史以来发行的最轻的硬币。1873年通过的《硬币法案》，停用了这种硬币；与此同时发行了由铜和镍铸造的3美分镍币，这种硬币比银版硬币略大一些。

To compare with general nickel coated steel strip, our steel strip with electrodeposited nickel coating is provided with more excellent processing capability and anti-corrosion capability. It can be applied to produce battery steel shell such as alkaline battery, electricizable battery, button cell, etc. This product has already been the developing trend of battery industry instead of actual rolling plating battery steel shell.

我公司生产的覆镍深冲钢带与普通镀镍钢带相比，具有更优良的加工性能和防腐性能，广泛应用于制造碱性电池钢壳、可充电电池钢壳、纽扣电池等电池产品，该产品取代现行滚镀电池钢壳已成为电池行业的发展趋势。

A very stable emulsion was obtained with addition of one additive in Watts nickel electroplating bath. Using the emulsion an even satin-finished nickel coating was prepared.

在瓦特镍镀液中加入添加剂后获得较稳定的悬浊液，利用这种镀液制得珠光效果良好的珍珠镍镀层。

In developed country, Nickel-base single crystal superalloy have been widely used as turbine blades and vanes of aero-engines and ground gas-turbine engines because their high-temperature properties are superior to those of polycrystalline nickel-base superalloy.

在发达国家，镍基单晶高温合金因其卓越的高温性能被广泛应用于航空发动机及地面燃气轮机的关键部件—涡轮转子叶片；在国内，某些发动机上亦开始使用单晶涡轮转子叶片。

The metal sample is dissolved with HCl H 2O 2, and the dissolved nickel is separated from other activation products by anion exchange. Nickel is then complexed with pealetyldioxime in the alkaline solution, extracted with toluene, and finally determined by liquid scintillation counter.

先将样品用HCl H2 O2 溶液溶解、再经阴离子交换、氢氧化物沉淀分离后，在碱性溶液中用丁二酮肟配合镍、甲苯萃取、稀HCl反萃后再用液体闪烁计数器测定反萃液中6 3Ni放射性活度、原子吸收分光光度计测定金属中稳定镍。

The electrodeposited nickel coating was deformed with different elongations and hardness,elastic modulus and creep property of nickel coating were investigated by nanoindentation.

用纳米压痕法对受不同程度拉伸变形后的电沉积镍镀层试样的硬度、弹性模量和蠕变性能进行了研究。

Nickel and nickel alloys; plate; rods and other metal materials.

镍及镍合金；板；棒等金属材料。

The fiber is firstly coated with a thin copper or nickel plate with electroless plating method. Then, a thicker nickel plate is coated on the surface of the conductive layer.

提供了保护过程的技术细节，首先在光纤表面进行化学镀处理获得导电的薄镍层或铜层，然后在该导电层上进行电镀镍。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！