gilpinite是什么意思

用法例句

Silver is present for the most part as stromeyerite and set in the microcracks of bornite.

工艺矿物学研究表明 ,该矿石银的赋存状态有着其独特之处 ,银赋存与铜矿物密切相关 ,银主要以较罕见的硫铜银矿矿物形式产出 ,嵌布于斑铜矿微裂缝中。

When copper sulphide ore began to be used for copper smelting in ancient China is an haportant problem.

中国古代何时利用硫铜矿冶炼金属钢一直是引人注目的问题。