And the gold was close with pyrite and arsenopyrite.
且金与黄铁矿及毒砂关系密切。
You say that Yunfu Lee in the fourth grade pyrite fair?
你说的是云浮硫铁矿四年级的李天朗？
The carbon reduction process of pyrite cinder was studied.
对硫铁矿烧渣的碳还原过程进行研究。
Brief accounts of pyrite mines across the country are given.
介绍了全国煤系硫铁矿的概况。
Brief accounts of pyrite mines across the country are given.
介绍了全国煤系硫铁矿的概况。
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