These are the copper resistance genes .

这些基因就是铜耐受基因。

Copper and cotton have hit record highs .

铜与棉花的价格再创新高。

The more significant impact is on copper markets .

这种做法对铜市场的影响更大。

Today 's copper glut is a result .

眼下，铜供应过剩便是结果之一。

But wearing copper is generally seen as harmless .

不过一般认为，佩戴铜饰无害健康。

Copper best illustrates the issues they face .

而铜最好的体现了他们所面对的一系列问题。

Copper stockpiles also have increased .

铜的库存也增加了。

Why use copper when you can use aluminium ?

能用铝，为何要用铜呢？

The penny : any copper coin will work .

任何一种铜硬币都可以发挥作用。

Aluminum , which weighs about 169 pounds per cubic foot , could theoretically be substituted for copper .

铝，每立方英尺169磅重，在理论上可以代替铜的使用。