As: an ancient Roman coin of copper or copper alloy.

阿斯： 古罗马一种铜硬币或铜合金硬币。

A new rare-earth copper alloy powder for 24k gold imitation is prepared.

研制新型仿24 K金稀土铜合金粉材料。

Shot peening is also improved the stress relaxation ability of copper alloy.

喷丸处理亦能改善铜合金的应力松弛性能。

Properties and applications of beryllium copper alloy are simply introduced.

简单介绍了铍铜的性能和用途。

The copper alloy strip of lead frame is the fundamental material for integrate circuit.

引线框架用铜带是集成电路的重要基础材料。

Brass with zinc main add elements of copper alloy, with beautiful yellow, collectively brass.

黄铜以锌作主要添加元素的铜合金﹐具有美观的黄色﹐统称黄铜。

So the research of the high strength and high conductivity copper alloy is an urgent affairs.

因此，研究高强度高导电率铜合金成为当务之急。

Suitable for low carbon steel, stainless steel, copper alloy, titanium alloy and cast iron welding.

适用于低碳钢、不锈钢、铜合金、钛合金及铸铁的焊接。

The product is used for brazing copper and copper alloy, easy processing, plastic, with good infiltration.

用于做钎焊铜及铜合金，易加工，塑性好，具有良好的浸润性。

The results show that the copper alloy density by permanent-mold casting attains 99.91% of theory density.

结果表明：经金属型铸造的铜合金密度达到理论密度的99 91%。

A siliconized nonporous layer on copper alloy may be obtained by efficient siliconizing in powder mixtures.

介绍了铜合金在渗剂粉末中高效渗硅，获得无孔的渗硅层。

The influences of rare earth on beryllium copper alloy are in close relationship with its addition quantity.

稀土对合金的作用与加入量有直接关系，过多与不及都不好。

Ship sailing tests show the propellers made of this alloy have much lover noise than copper alloy propellers.

实船试验表明，该合金螺旋桨比铜合金螺旋桨噪声有较大幅度降低。

In this paper, the copper alloy for corrugated radiating radiatorstrips and pipes of auto radiators was studied.

本文研究了管带式汽车散热器散热波浪带和散热管用的铜合金。

So, how to improve the using life and the working precision of the copper alloy is an important research project.

因此，如何提高铜合金的使用寿命和工作精度就成为一个重要的研究课题。

The fabrication principles and characteristics of high-strength and high-conductivity copper alloy are summarized.

概述了高强高导铜合金的制备方法及其特点。

Copper and copper alloy wires are easily to be oxidized and discoloured during production, transportation and storage.

铜及铜合金线在生产、贮存、运输过程中极易发生氧化及变色。

A process and formula for gold imitated coloring of copper and copper alloy by cathodic reduction were advanced in detail.

详细介绍了一种铜及铜合金阴极还原着仿金色工艺及其配方。

The case of burrs defective in cyanide tin - copper alloy deposits were investigated and preventive methods were proposed.

分析了氰化镀铜锡合金过程中镀层出现毛刺弊病的原因，并提出了解决方法。

Using copper alloy mould to make the small-sized and thin wall ductile iron castings is a new technology in the foundry field.

采用铜合金金属型生产小型薄壁球墨铸铁件是铸造领域一项新技术。

In this paper, the author developed an ultrasonic vibration drilling system, and utilized it to do experiments on copper alloy.

本文研制一种超声轴向振动系统，并对合金铜进行试验。

The main application products of copper alloy are copper wire for WEDM, copper tube for air conditioner, copper tube for heat sinker.

铜合金应用制品主要有线割放电加工用电极铜线、空调设备用铜管、散热器用铜管。

Continuous roller hearth furnaces for the heat treatment of steel, stainless steel, copper and copper alloy bars, sections and pipes.

钢，不锈钢，铜及铜合金的棒，零件和管的热处理连续辊底式炉。

The composition and microstructure of the failed copper alloy tube in a condenser were studied by means of optical microscope and EMPA.

用电子探针、光学显微镜对电厂凝汽器泄漏铜管的成分、组织、微区元素分布进行分析。

No corrosion of the metallic materials, such as mild steel and copper alloy, of the system will be promoted by this electrolysing method.

此法对冷却水系统的金属材料如软钢和铜合金不会进一步促进腐蚀；

The defects of casting technology and the impurities in copper alloy material cause roughness of faucet surface with large amounts of sand holes.

铸造技术不完善、铜合金原料中的杂质致使水龙头零件表面疏松，并有大量砂眼。

Solder factory is mainly engaged in the production and marketing of products, aluminum copper alloy brazing flame or high-frequency brazing material.

本厂主要从事焊锡制品的生产和销售，铝铜合金的火焰钎焊或者高频钎焊材料。

This paper presents the characteristics of various kinds of copper alloy and material selection for contact wire for high speed electrified railways.

通过各种铜合金的特性分析，提出高速电气化铁路接触导线的材料选用。

Rinsing with tap water was popularly adopted between the procedures of strike copper plating and bright sulphate copper plating for copper alloy glasses.

铜合金眼镜架经预镀铜和光亮酸铜工艺处理，工序间普遍采用自来水水洗。