该方法是露天矿分期开采来剥关系优化理论的进一步推广。
This method is expansive one of the general dynamic optimization method in this mining method.
境界分析对大型矿山确定分期开采的分期境界也具有重要价值。
Pit-limit analysis is also a valuable procedure in determining the phase pit limits.
在倾斜矿床露天矿长远规划模型的基础上，建立了分期开采境界优化模型。
Based on the "surface mine long term planing model" the stepwise mining limit optimization model has been set up for inclined ore bed.
允许外商将勘查费用计入递延资产，在开采阶段分期摊销。
Foreign investors are allowed to incorporate expenditures on prospecting into deferred assets and have them amortized at the prospecting stage.
允许外商将勘查费用计入递延资产，在开采阶段分期摊销。
Foreign investors are allowed to incorporate expenditures on prospecting into deferred assets and have them amortized at the prospecting stage.
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