The exploration on the deep and around of wolframite mine must act according to the geological regularities.
必须根据地质规律开展黑钨矿山的深部和周边找矿。
Portugal Panasqueira wolframite deposit consists of very thin, gently dipping veins which are very hard to mine efficiently.
葡萄牙帕纳什·凯拉黑钨矿为微倾斜极薄矿脉，开采难度大。
Portugal Panasqueira wolframite deposit consists of very thin, gently dipping veins which are very hard to mine efficiently.
葡萄牙帕纳什·凯拉黑钨矿为微倾斜极薄矿脉，开采难度大。
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