low-grade deposit 贫矿床 ; 低品位矿床
low-grade ore deposit 低品位金矿床
low grade gold deposit 低品位金矿
low-grade gold deposit 低品位金矿床
low-grade nickel deposit 低品位镍矿床
Mineral component and process mineralogy characteristic of middle and low grade phosphate deposit are important study objects for reasonable phosphate resource usage.
中低品位磷矿床的物质组成及工艺矿物学特征是合理利用磷矿资源重要的研究内容。
The Mengxing Pb Zn deposit with low ore grade and deep buried is facing the situation of resources exhausted.
勐兴铅锌矿矿石品位低、埋深大，且面临资源匮竭。
The ore structure of Daling Mine is complex in Jilin Nickel Industry Corporation, it is typical low grade difficulty mining deposit.
吉林镍业公司大岭矿矿岩结构复杂，为典型的低品位难采矿床。
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