The optimization design mainly consists of two contents: adjustment of the mining boundary of open pit and optimization of production scale.
优化设计主要包括两方面的内容：露天开采境界的调整和生产规模的优化。
It will be a short time for Nanfen open-pit iron mine to mine in the third stage. The mine should be engaged on deep part mining design at once.
南芬铁矿目前正在进行的三期境界开采的服务年限已经不长了，矿山需要马上着手进行下期深部开采设计。
The choice of mining technology for open pit mine is an important part of open pit design, which will directly affect the economic benefits of mine.
露天矿开采工艺的选择是露天矿设计的重要环节，直接影响到露天矿的经济效益。
Design a operative scheme which can carry out transferring from open pit mining into underground mining successfully.
设计出一整套操作性很强露天转地下开采方案。
Open-pit limit optimization is an important content in open-pit mining design and production process control.
露天境界优化是露天矿开采设计和生产过程控制的重要内容。
Open-pit limit optimization is an important content in open-pit mining design and production process control.
露天境界优化是露天矿开采设计和生产过程控制的重要内容。
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