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。
Active lime pit is advanced in structure as it adopts reliable both-ends combined type scale sealing, making the air leakage factor below 10%.
活性石灰窑结构先进，采用可靠的回转窑两端组合式鳞片密封，使漏风系数小于10%；
The quality of the haulage road in a large-scale open pit directly affects the operating costs and haulage efficiency of the trucks.
大型露天矿运输道路质量的好坏直接关系到矿用汽车运行成本和运输效率。
The conclusions made in the paper will be referred as well as applied in the design and construction of supporting system of the pit structure with large scale.
论文提出的结论可参考应用于大型基坑结构支撑系统的设计和施工。
The ore resource in Washan Pit, Nanshan mining Co., Ltd, MaSteel will be depleted soon through nearly half a century "s large scale mining."
马钢南山矿业有限责任公司凹山采场经过近半个世纪的大规模开采，矿石资源即将枯竭。
That main excavation and loading equipment at present in domestic large-scale open-pit is the Electric shovel.
目前国内大型露天矿山的铲装设备主要是电铲。
Among the mid-scale foundation pit, the excavation at Zhi Xin Square is most characterized by its close clearance to adjacent building, deep depth and irregular shape.
置信广场基坑工程属中等规模基坑，紧、近、深、不规则等特点在工程中表现突出。
It is reported that the mining area rich in coal resources, coal mining can be thick, buried shallow dip small coal occurrence stability, abundant reserves, suitable for large-scale open-pit mining.
据介绍，这一矿区煤炭资源丰富，可采煤层厚、埋藏浅、倾角小、煤层赋存稳定、储量丰富，适于大型露天开采。
Pit-less type platform scale, checked iron surface plate (surface plate of SST models is smooth plate) combined with welding U-shaped steel girder formed a higher strength and reliable platform scale.
台面采用花纹面板（不锈钢系列为光板面板），U型钢梁焊接，强度高。
Pit-less type platform scale, checked iron surface plate (surface plate of SST models is smooth plate) combined with welding U-shaped steel girder formed a higher strength and reliable platform scale.
台面采用花纹面板（不锈钢系列为光板面板），U型钢梁焊接，强度高。
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