pit mining boundary 露天境界
safety mining boundary 安全开采边界
economic mining boundary 经济开采边界
economic-mining boundary 经济开采边界
open-pit mining boundary 露天开采境界
Enlarging the mining boundary 扩大开采境界
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。
As Houxi Opencast Mine has smaller mining boundary and it is near villages, the safety of mining and controlled blasting are strictly required.
侯西露天矿开采境界小，距离村庄近，对剥采作业安全性、控制爆破技术有较高的要求。
The establishment of the computer model for the ore body of open pit mine is the basis for the optimization of deposit mining boundary and the mining production scheduling.
露天矿矿体计算机模型的建立是进行矿床开采境界优化及制定矿山生产计划的基础。
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