查询词典 copper bit

It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.

本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题，系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性，通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析，全文主要内容如下： 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明：红磷在空气中发生缓慢氧化、歧化反应，微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度，其中铜离子的作用最为明显，而铝、锌等离子减慢了红磷的氧化速度，银离子对减少红磷的吸湿性效果最好。

If one square inch of copper is used as a heat dissipator for the TO-252, the J-A drops to approximately 50C/W. The SOT-223 package has a J-A of approximately 125C/W when soldered down to a minimum sized pattern (less than 0.1 square inch) and approximately 70C/W when soldered to a copper area of one square inch.

如果一平方英寸的铜是作为的TO - 252热消使用时，司法机构政务长下降到大约50 / W的的SOT - 223封装具有的司法机构政务长大约125C / W的焊接时下跌不到0.1平方英寸的最小尺寸为1型和大约70 / W型焊接时，一铜一平方英寸面积。

Products OverviewEaves Gutters Water Systems, Downspout(Material: Aluminum, Copper)Condensate Under-water Pipes(Material: Aluminum)Special on-request Processing PartsMaterial: Aluminum, Copper

产品系列檐沟、落水管冷凝水下水管特殊加工材质：彩铝、紫铜

Products OverviewEaves Gutters Water Systems, Downspout（Material: Aluminum, Copper）Condensate Under-water Pipes（Material: Aluminum）Special on-request Processing Parts（Material: Aluminum, Copper

产品系列檐沟、落水管冷凝水下水管特殊加工

The majority of early stage copper etching artist did drawings by means of painting at metal plate and indirectly etching the picture. At the same time, it also gave rise to a lot of representative copper etching artists, such as Albrecht Durer (1471-1528),H.

早期的铜版画家多数采用在金属版上进行绘制和间接腐蚀图形的方法作画，同时也产生了一批具有代表性的铜版画家，如丢勒(Albrecht Durer 1471-1528)，伦勃朗

The explosive clad method is used in chorine-alkaki industry to manufacture the copper-steel clad cathode plate of electrobath and solve the problem of copper and steel clad in large area.

利用爆炸焊接方法制造氯碱电解槽的铜钢阴极板，以解决纯铜与钢材大面积复合问题。

LI Xiaojie The explosive clad method is used in chorine-alkaki industry to manufacture the copper-steel clad cathode plate of electrobath and solve the problem of copper and steel clad in large area.

利用爆炸焊接方法制造氯碱电解槽的铜钢阴极板，以解决纯铜与钢材大面积复合问题。

It has 3 D positioning function, is able to install negative and positive pole plates in electrobath and take the used positive pole plate or negative copper out from the electrobath, and conveys the copper to the next workstation.

电解铜起重机是铜厂电解车间精炼铜的专用起重设备，具有三维定位功能，能够高效地将阴阳极极板装入电解槽及将阳极残极或阴极铜从电解槽中取出，送入下一工序。

Our company have nonferrous metal products are speckle copper,bronze,electroform copper and etc.and also we offer those products for decoration,gifts,souvenir,embossment,sculpture,sample machining and etc,service.

主要产品有斑铜、青铜、电铸铜等有色金属系列工艺品，能为社会提供艺术装饰、高档礼品、旅游纪念品、铜像浮雕、圆雕、城市雕塑、来样加工、制作等系列服务。

Without going into a great deal of theory regarding electrochemical principles and the solution of metals, it has been determined that corrosion of steel is stopped when its potential to a copper-copper sulfate electrode is –0.5 volt or more electronegative with the reference electrode placed close to the electrolyte/structure interface.

不需要太多的电化学原理和金属溶液理论，人们已经知道，当把参比电极放于电解质和结构界面附近，钢或铁相对于铜－硫酸铜电极的电位达到－0.5伏或更负时，钢、铁的腐蚀就会停止。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。