露天开采

Mining methods can be divided into open-pit mining, underground mining and exploitation of three kinds of liquid basic mining methods.

采矿方法可大致分为露天开采、地下开采和液体开采3种基本采矿方法。

As the main base of phosphorite mine in Guizhou Province,the exploitation scope expanding of Wengfu phosphorite mine has had a great impact on the ecological environment.

由于贵州省磷矿具有埋藏浅、易开采、质量高的特点，其磷矿主要采用露天开采的方式，对磷矿山生态环境的破坏程度极大。

Strip mine is another form of surface mining.

露天剥离矿是露天开采的又一种类型。

This process is called contour strip mining, as it follows the contours that connect points of the same height along a hillside.

这种方法称为山坡露天开采，因为这种开采是沿山坡的等高线进行的。

The planned open pit is based on mining the oxide portion of the deposit that lies beneath 65 to 490 feet (20 to 150 meters) of barren tuff and lava.

开采计划是要对处于不含矿石的凝灰岩和熔岩的覆盖层以下65至490英尺（折合20至150公尺）处的矿床氧化部分进行露天开采。

As a result of the speedy development of the cities, the demands of stone material become more and more. Many hypaethral quarries have been built because of this, but people neglect the ecological and environmental impact brought by opencast working. And the prevention and cure steps that do isn't arrive at the goal of zoology renew.

摘要由于城市发展迅速，对石料的需求也越来越多，许多的露天采石场因此建立起来，但是他们却忽略了露天开采所带来的一系列生态环境影响，而且所做的防治措施远没有达到生态恢复的目标。

Then use a hypaethral quarry to do the ecological and environmental impact assessment and forecast. And tick off some material prevention and cure steps in opencast working, include engineering and ecological steps.

再结合某露天采石场进行生态环境影响评价与预测，并列出露天开采所应采取的具体的防治措施，包括工程措施和生物措施。

The characteristics and application of the main mining methods of China's metal mines and their improvement and application prospect are discussed. In view of the existing technical basis and the trend of the demand of China's economical development on metal mines' resource, the future development of mines is prospected. Several feasible concepts are given such as the development orientation of mathematical mine and artificial intelligency, optimization of the hauling system of open pit mining and open...

讨论了我国金属矿山主要采矿方法的特点、应用情况、得到的改进及应用前景，针对现有的技术基础以及我国经济发展对金属矿资源的需求趋势，对未来矿山的发展进行了展望，重点提出了数字矿山、人工智能等发展方向，及进行露天开采运输系统优化和地下开采露天化几种可行性的设想，为我国采矿工作研究者提出了几种新的课题。

After combining LanYingXu stope, the practical problems have found in augment production stripping-ratio and lower conveying capacity of augment barren rock . The detailed study have been done to control the production stripping ratio ,the economic stripping ratio and optimal limit depth in the exploitation of middle and bottom LanYingXu stope .The economic mathematical model has been established and the application has been built in windows visional system. The optimal result can offer the referenced. Basis for mining production ,for organization and management.

并根据兰营徐统一采场后，生产面临的剥采比增大、废石运量增加、运输能力降低、露天开采深度越来越大的生产实际问题，对兰营徐采场中深部开采的生产剥采的控制、经济合理剥采比及最终开采深度进行了详细的研究，建立了经济数学模型，并编制了Windows环境下的可视化的应用程序，计算出了优化结果，为矿山生产、组织管理提供了参考依据。

Open-pit mining. That in the open air conditions, the shallow depth of the ore from open pit mines, open pit slopes for open pit or strip mining ...

露天开采。即在露天条件下，将埋藏较浅的矿石，从矿坑露天矿、山坡露天矿或剥离露天矿进行开采。。。。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。