Iron casts better than copper.
铁比铜容易铸型。
Lead, iron, copper, tin, and zinc are base metals.
铅、铁、铜、锡和锌都是基本金属。
The most important ores treated at that time were those of copper, iron and silver.
那时处理的最重要的矿石事铜矿、铁矿和银矿。
Iron, copper, and gold are minerals.
铁、铜和金都是矿物。
There would be no the beautiful gold, silver copper, iron and tin.
世上不会有鲜花一样的金银铜铁锡。
Objective:To study the role of copper and iron ion in carcinogenesis.
目的：研究铜离子、铁离子在癌形成中的作用。
In the spring and Autumn period, copper and iron chopsticks came into being.
在春秋时期出现了铜制和铁制的筷子。
Iron dug from the ground, copper melting from the stone.
铁从地里挖出，铜从石中溶化。
What's the middle copper rivet for? But some spearhead is made all by iron?
中间的铜铆是何用途?可有些枪头又完全是铁造?。
We can tell iron and copper apart.
我们能辩别铁和铜。
Whether it is oil, corn, iron ore, coal, cotton or copper, prices are falling quickly.
不管是石油、玉米、铁矿石、煤炭、棉花还是铜，价格都在快速下跌。
The Dahongshan deposit is a famous, large and rich copper-iron deposit in Yunnan.
云南大红山铁矿是一个著名的大型富铜铁矿床。
The Dahongshan deposit is a famous, large and rich copper-iron deposit in Yunnan.
云南大红山铁矿是一个著名的大型富铜铁矿床。
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