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1·Traditional open-pit mining boundary features fixed slope with benches and planar bottom.

传统的露天矿开采境界为固定帮有台阶、露天底平面型。

2·Relative to the waste rock dump of underground mining, open-pit mining needs a larger one.

相对于地下开采的废石场，露天开采的排土场占地面积要大得多。

3·Mining transport system is one of the most important production links in open-pit mining process.

矿山运输系统是露天矿开采工艺中非常重要的生产环节。

4·Open-pit limit optimization is an important content in open-pit mining design and production process control.

露天境界优化是露天矿开采设计和生产过程控制的重要内容。

5·With the yearly increase of the depth of open-pit mining, the water infiltration of borehole can not be ignored.

露天矿开采深度逐年增加，炮孔内的渗水越来越不容忽视。

6·Research on the safety and stability of slope in open-pit mining is very significant to safety production of open mines.

研究露天开采边坡的安全稳定对露天矿山的安全生产具有重要意义。

7·The technology is very useful for exploiting gentle-inclined thin bauxite body as well as for open-pit mining of iron ore.

该工艺对于缓倾斜薄矿体铝土矿、铁矿露天开采具有重要意义。

8·Open-pit mining follows the same sequence of oprations as underground mining: drilling, blasting, and loading and removing waste and ore.

露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。

9·Open-pit mining follows the same sequence of operations as underground mining: drilling, blasting, and loading and removing waste and ore.

露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。

10·Greenhouse gas emissions of tar sands crude are 40% higher than conventional oil, and the open-pit mining has devastated Alberta's boreal forest.

焦油砂的温室气体排放量比普通石油高40%，露天采矿已经极大地破坏了阿尔伯塔的北方气候带森林。