yichun tantalum & niobium mine
yichun tantalum & niobium mine
宜春钽铌矿
以上为机器翻译结果,长、整句建议使用 人工翻译 。
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The breakeven grade of tantalum for Yichun Tantalum-niobium mine is determined by the analysis of the profit and loss, and the strategy on the black-spot ore exploration is proposed.
通过盈亏平衡分析,确定宜春钽铌矿盈亏平衡品位,提出黑斑矿的处理方案。
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