大不列颠从1300年开始便采用金银纯度印记；金或银要通过纯度试验和打上国王标记后才得以出售。
Hallmarking in Britain dates from 1300; no gold or silver could be sold until tested for purity and struck with the king's mark.
建立了银坑山式金银矿床的构造控矿模式。
The model of tectonic ore control of this deposit is established.
江西于都银坑地区是赣南东部的金银铜铅锌锰等矿集区。
Yinkeng area is an ore concentration area of gold, silver, copper, lead zinc, manganese in east Jiangxi.
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