The determination of the rational highway grade structure is one part of highway network planning, it also is an important content of highway network layout optimization.
公路网合理等级结构的确定，是公路网规划的组成内容之一，也是公路网布局优化的重要组成内容之一。
Base on this, Offer the idea of total and part of the mine optimization consider of the grade distribution and mining methods, then implement it by computer software system.
在此基础上，结合矿山的品位分布和采矿方法，提出整体优化和部分优化的思路，并通过计算机软件系统实现。
From the results we know gross profit and NPV have obviously improved after optimization, so its reasonable for optimization grade index on this mine.
结果表明，优化后该矿的总利润和净现值有了明显的提高，说明将该矿的品位指标进行优化是合理的。
From the macroscopic point of view, the necessity of improving and optimizing the iron concentrate grade index, the potential technical ways and the thought on optimization study are described.
从宏观角度出发，阐述了提高和优化铁精矿品位指标的必要性、技术途径及优化研究的思路。
As an effective measure of desulphurization this process can reduce the production cost of high grade steel by way of further optimization of the process parameters.
在进一步优化工艺参数后，可以成为有效的脱硫手段，降低品种钢在冶炼过程的生产成本。
The technical key to the dynamic optimization study of the rational mill feed grade of metal mines is the establishment of various mathematical models.
金属矿山合理入选品位动态优化研究的技术关键是建立各种数学模型。
Using the linear programming method, they have set up a mathematic optimization model for adjusting age-grade of timber forest in Hushan Forestry Farm of Suichang, Zhejiang.
用线性规划的方法建立遂昌湖山林场用材林龄级调整最优化数学模型。
This paper presents a practical final-pit optimization algorithm for open-pit metal mines based on a breakeven strip ratio and a block model of ore grade.
给出一个基于经济合理剥采比和品位块状模型的露天金属矿境界优化实用算法。
In this paper, the principles to be abided by and factors needing to be considered for the optimization of grade indices of rocky gold deposit are discussed.
本文阐述了岩金矿品位指标优化应遵循的原则和考虑的因素。
The ore-body block model is not only widely used in ore grade and reserve calculation, but used in the optimization of the final mining boundary and mining plan in the open pit.
矿体块状模型广泛应用于品位、储量计算，也可用于露天矿最终开采境界优化和开采计划优化。
Combine the constructed index system with the selected evaluation method to establish the route optimization evaluation model of high-grade highway in the cold region.
将构建的评价指标体系和优选出的评价方法相结合建立了寒冷地区高等级公路路线方案优选模型。
The 2-order grey relational grade method for solving the optimization of development alternatives with multi-objective function in multi-block-multilayer oil and gas field is developed.
针对多断块、多层系油气田开发方案优选的多目标性，提出了用二阶灰色关联度求解的方法。
The 2-order grey relational grade method for solving the optimization of development alternatives with multi-objective function in multi-block-multilayer oil and gas field is developed.
针对多断块、多层系油气田开发方案优选的多目标性，提出了用二阶灰色关联度求解的方法。
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