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(2)大中型礦山企業(yè)為尋找接替資源申請的勘查、開發(fā)；
(3)運用新技術(shù)、新方法提高綜合利用水平的(包括低品位、難選冶的礦產(chǎn)資源開發(fā)及老礦區(qū)尾礦利用)礦產(chǎn)資源開發(fā)； 上一頁 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] 下一頁 |
