Proposals for technical renovation of the raise were suggested based on a comprehensive analysis of the field situation and according to the bulk flow rule and ore draw theory.
在综合分析了现场情况，根据散体流动规律及放矿学理论，提出了溜井改造技术方案。
Proposals for technical renovation of the raise were suggested based on a comprehensive analysis of the field situation and according to the bulk flow rule and ore draw theory.
在综合分析了现场情况，根据散体流动规律及放矿学理论，提出了溜井改造技术方案。
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