查询词典 nickel brass

Iron-base fluxed alloy is produced by adding suitable amount of boron and silicon into iron-carbon alloy, which is usually used on the wearable and weak-acid-medium proofing accessories under 500℃. Although the performance of iron-base fluxed alloy can not match with that of the nickel or cobalt alloy, it has wide source materials and low prices, which is the great advantage for application.

铁基自熔性合金是铁——碳合金中加入一定量的硼、硅元素制成的，通常应用在常温——500℃以下耐磨损、耐弱酸腐蚀介质的机械零部件上，仅管铁基自熔性合金，综合性能不如镍、钴基合金，然而原料来源广泛，价格便宜，这是其得以普及应用的较大优势。

Sulfur ore concentrate to chromic, nickel, in zinc waste water treating processes, increment, agitation time factors and so on discussed the temperature through the experiment, has thrown galvanizes the heavy metal waste water to sulfur ore concentrate processing the influence, thus obtains the galvanization waste water processing being suitable experimental condition.

本课题采用的硫精矿是邯郸市插箭岭磷肥有限公司所提供，硫精矿对含铬、镍、锌废水的处理过程中，通过实验探讨了温度、投加量、搅拌时间等因素对硫精矿处理电镀重金属废水的影响，从而得到电镀废水处理的适宜的实验条件。

The hardness of HSS roll was over 66 HRC, the depth of hardened layer excesses 30 mm, the variation of hardness in the roll surface was smaller than 1.5 HRC, and the wear resistance of HSS roll was better than that of high chromium cast iron roll and high nickel chromium indefinite hilled cast iron roll, close to that of powder metallurgy hard alloy roll.

研制出的高速钢轧辊硬度超过66HRC，淬硬层深度超过30mm，辊面硬度差小于1.5HRC，耐磨性优于高铬铸铁和高镍铬无限冷硬铸铁轧辊，接近硬质合金轧辊。

The process is one two-stage hydrogenating process in the presence of non-crystalline nickel alloy catalyst, and has mild reaction condition.

该方法克服了传统铁粉法收率低、能耗高、污染环境的缺点，更解决了催化加氢工艺过程中催化剂使用寿命短的问题。

And K platinum. Gold in 25 above palladium or nickel, will become a "WHITE" namely WHITE gold, it is the main component of gold, but it still hyphenates called K platinum.

还有K白金。黄金中混入25以上的钯或镍，就会成为&WHITE&也就是白色的金，组成它的主要成份还是黄金，而它的叫法就叫K白金。

It was found that the reactions at electrochemical impregnating process have different order at nickel and platinum base.

在第五章中，应用空穴微电极对阴极电沉积过程的反应进行了研究，发现以铂和镍为基底进行电沉积时发生反应的先后顺序不同。

An ultra-high strength, weldable, low alloy steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone when welded, having a tensile strength greater than 830 MPa (120 ksi) and a micro-laminate microstructure comprising austenite film layers and fine-grained martensite/lower bainite laths, is prepared by heating a steel slab comprising iron and specified weight percentages of some or all of the additives carbon, manganese, nickel, nitrogen, copper, chromium, molybdenum, silicon, niobium, vanadium, titanium, aluminum, and boron; reducing the slab to form plate in one or more passes in a temperature range in which austenite recrystallizes; finish rolling the plate in one or more passes in a temperature range below the austenite recrystallization temperature and above the Ar3 transformation temperature; quenching the finish rolled plate to a suitable Quench Stop Temperature; stopping the quenching; and either, for a period of time, holding the plate substantially isothermally at the QST or slow-cooling the plate before air cooling, or simply air cooling the plate to ambient temperature.

在基体板以及焊接时的热影响区处的低温韧性优异的超高强度、可焊接、低合金钢具有高于830MPa（120ksi）的抗拉强度，并且具有包含奥氏体薄膜层和细晶粒的马氏体／下贝氏体板条的显微层状组织，所述钢的制备过程为：加热含有铁以及特定重量百分比的添加元素的钢坯，所述添加元素为碳，锰，镍，氮，铜，铬，钼，硅，铌，钒，钛，铝，以及硼中的一些或全部；在奥氏体可发生再结晶的温度范围内，采用一个或多个道次，将所述钢坯轧制成板材；在低于奥氏体再结晶温度但高于Ar 3 转变点的温度下，采用一个或多个道次对所述板材进行终轧；将所述终轧板材淬火至一适当淬火终止温度；停止所述淬火；或者在空冷前在QST点基本等温保持所述板材一段时间，或者对所述板材进行缓慢冷却，或者只是简单地将所述板材空冷至室温。

The Cobalt Nickel and Copper in waste slag were leached by mix acid.

钴、镍是贵重的有色金属，重要的战略原料，但资源匮乏。

So, it is better to control the iron reduction degree to be 60%. Correspondingly, the leaching rate of nickel and iron is about 85% and not over 30%, respectively.

因此铁还原度控制在60%为宜，相应的镍浸出率约为85%，而铁的浸出率不超过30%。

I suspect, in honesty, my initial interest was based on a private image of streams of unsuspecting eastbound motorists in the American plains states plunging over the edge of a sudden 4,000-mile-high cliff running between Central America and the North Pole, but gradually my attention did turn in a more scholarly manner to the scientific import of the drawing and the realization that the Earth consisted of discrete layers, ending in the center with a glowing sphere of iron and nickel, which was as hot as the surface of the Sun, according to the caption, and I remember thinking with real wonder:"How do they know that?"

坦白讲，我怀疑自己最初对那幅画的兴趣仅源于脑海中的一幅画，里边一群意志坚定的人驾车东去，要穿越横亘在中美与北极之间的一道深四千公里的悬崖。但后来开始慢慢的以一种学术眼光来研究这幅插图背后的科学含义。并意识到地球是由分离的层组成，最里边是由铁和镍构成的发红的球心。图片旁边的说明文字解释说，这个球心的温度同太阳表面一样高。我仍记得当初十分好奇的想知道，他们是如何得知这一切的。

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！