镀锡、镀银或镀镍铜线 Tinned Silver Nickel Copper
当时为了弥补芒口的缺陷，工匠门又设计在器口沿上镶上一圈金、银或铜。
At that time in order to make up for the defects of the mouth, craftsmen and the door was designed on the edge of a ring of gold, silver or copper.
通常以小量广泛分布，偶尔出现游离状态，但往往是以铁、铅、银或铜的硒化物出现。
It is widely distributed, usually in small amounts, occasionally uncombined but more often as selenides of iron, lead, silver, or copper.
电子垃圾中的材料包括铁、铜、金、银和铝，这些材料可以被重复利用、转售、废物利用或回收。
The materials from e-waste include iron, copper, gold, silver, and aluminum materials that could be reused, resold, salvaged, or recycled.
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