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。
The oxidized copper ore is low copper grade, complex minerals composition, fine-grained dissemination, high oxidation level, and high content of alkaline gangues.
某铜矿石铜品位低，氧化率高，碱性脉石含量高，嵌布粒度很细，属于典型的难处理氧化铜矿。
The low grade of Cu Ni complex ore from Jinchuan (Gansu Provence, China) is one of oxidized and sulfidized ore with high level of basic gangue.
我国现有储量巨大的高碱性脉石型低品位氧化锌矿，用传统的炼锌方法无法处理。
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