查询词典 copper

The experiment confirms that the Al2O3/Cu composite material by internal oxidation of deeply aluminized pure copper matrix is a kind of superiority diathermanous copper material as being the metallurgical equipment material.

将纯铜深层渗铝内氧化A12O3/Cu复合材料的性能与纯铜深层渗铝固溶时效合金的性能进行对比，确定纯铜深层渗铝内氧化A12O3/Cu复合材料作为冶金设备用传热铜材料的性能的优越性。

The influences of additives [K4Fe6, 2, 2'-dipyridyl and L-argiine] on the depositing rate and stability of electroless copper bath and the corrosion resistance, conduction and adhesion of copper plating were investigated using electrochemical methods etc.

用电化学等方法，研究了添加剂亚铁氰化钾、2，2'-联吡啶和L-精氨酸对陶瓷化学镀铜镀液的沉积速度与稳定性、镀层的耐腐蚀性、导电性及结合力的影响。

On the other hand, a method for the synthesis of-vinyl chalcogenides by the coupling of vinyl bromides with thiols or diphenyl diselenide using copper salts as catalysts in ionic liquids based on amino acids also has been described. The ionic liquids play multiple roles in the reaction: they act as solvent, base, and excellent promoter for the copper-catalyzed coupling reactions.

在新型的氨基酸负离子的离子液体中，开发了一个亚铜盐催化的Z-型溴代烯烃与硫族元素的交叉偶联反应，为立体选择性的制备Z-型烯基硫醚或烯基硒醚类化合物提供了一个新的方法；在此反应体系中，离子液体不仅起到了反应溶剂的作用，而且还起到了金属催化剂的配体和中和反应副产物的碱的作用。

Said film made electrode has good charge discharge circulation reversibility, wherein: copper diselenide film made electrode specific capacity keeping on 220 mah/g; copper selenide film made electrode specific capacity keeping on 160 mah/g; cuprous selenide film made electrode specific capacity keeping on 210 mah/g more or less.

由这三种薄膜制成的电极，都具有良好的充放电循环可逆性，其中：由二硒化铜薄膜制成的电极的比容量保持在220mAh/g左右；由硒化铜薄膜制成的电极的比容量保持在160mAh/g左右；由硒化亚铜薄膜制成的电极的比容量保持在210mAh/g左右。

Studying the positive plate quality,electrolyte composition,additive and manufacturing operation how to effect electrolytical copper quality in production process and finding the method to improve electrolytical copper quality.

研究了电解铜生产过程中阳极板质量、电解液成分、添加剂和生产操作等因素对电解铜质量的影响，并针对上述影响因素，提出了进一步提高电解铜质量的办法。

Erodent properties : ACQ-DB preservative and its treated materials may cause erosion to some materials, Such as copper, aluminum and zinc-copper alloy etc.

腐蚀性： ACQ-DB 及 ACQ-DB 处理材对铜、铝、锌-铝合金等材料有一定的腐蚀作用，所以避免与上述材料直接接触。

The conclusion indicates: the way of the simple formula is satisfied to the requirements of engineering design; comparing with steel material, copper has better electric, better heat-resistant, lower erodible, more convenient in constructions, longer life, less pollution to the soil. Although using copper material, the earlier investment is larger, in long view, it is reasonable.

结果表明：常用简化公式算法精度满足工程设计要求；与钢接地体相比而言，铜接地体具有导电性能、热稳定性能好，耐腐蚀能力强，施工方便，可加快工程进度，寿命长，投运后减少了检验维护工作量，并对土壤无污染，但初期投资有所增加，但从长远利益考虑，采用铜接地网是合理的。

This paper detailed introduce the key technology in the new scheme of copper ground connection net: Exothermal welding and the copper facing steel.

本文还对铜质接地网新方案中的关键技术：放热焊接和镀铜钢棒给予详细的介绍。

Using glyoxylic acid to replace the harmful chemical substance formaldehyde as a reducing agent, an copper layer was deposited on rosin substrate by this electroless copper plating technology.

用乙醛酸代替有害的化学药品甲醛作为还原剂，在树脂基材上进行化学镀铜。

Using glyoxylic acid to replace the harmful chemical substance such as formaldehyde as a reducing agent, an electroless copper plating on difficulty deposited substrates was fulfilled, which including Al,Ti and wafers having TiN and TiSiN as the barrier layers.The surface morphologies and grain structures of copper deposits prepared were analyzed.

摘 要：采用乙醛酸代替有害的化学药品作为还原剂的化学镀技术，在工业纯铝片、工业纯钛片、以TiN作为扩散防护层的硅片和以TiSiN作为扩散防护层的硅片等难镀材料实现了化学镀铜。

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。