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结合霍林河南露天煤矿生产实际情况，对原设计开拓延深方式进行了分析和评价，提出了灵活机动的延深方式，为提高经济效益提供参考。
According to the actual production in Huolinhe opencast coal mine, the way of the original design and development is analyzed and evaluated, and the way of deepening the flexibility of maneuvering is put forward to provide reference for improving the economic benefit.