1.
Study of Pure Copper Wires and Copper-iron Composites with High Strength and High Conductivity;
高强高导纯铜线材及铜铁复合材料研究
2.
Improving Design for Optimizing the Existing Mine Ventilation System of Tonglushan Copper & Iron Mine;
铜绿山铜铁矿矿井通风系统优化改造设计研究
3.
The coppersmith faced the iron bar with copper.
这铜匠把铜涂在铁条上。
4.
fool's gold
【矿】黄铁矿, 黄铜矿
5.
"But gold and silver and brass and iron and tin and lead,"
金，银，铜，铁，锡，铅，
6.
brass-plated iron square hinge
镀黄铜抽心铁方铰链
7.
colour fastness to iron and copper in dye bath
耐染浴中铁和铜色牢度
8.
filled gold
镀金的金属(铜、铁、铅等)
9.
The melting point of copper is not so high as that of iron.
铜的熔点不如铁高。
10.
copper headed nail of iron or steel
带铜头的钉,铁或钢制
11.
drawing-pin, of iron or steel, copper-headed
铜头绘图钉,铁或钢制
12.
bronze-plated iron square hinge
镀青铜抽心铁方铰链
13.
Cast iron and copper alloy ball valves
GB/T15185-1994铁制和铜制球阀
14.
hook nail of iorn or steel, copper-head
带铜头的钩钉,铁或钢制
15.
the first iron was often even softer than bronze.
最初的铁往往比青铜软。
16.
antique-copper iron square hinge loose pi
古铜色轴心铁方铰链
17.
We can tell iron and copper apart.
我们能辩别铁和铜。
18.
Iron/Copper-Nickel(Constantan) thermocouple wires
GB/T4994-1998铁铜镍(康铜)热电偶丝