The conventional mining causes the mining subsidence and at the some time a refuse heap arises on the ground.
常规开采在地面堆积矸石山的同时引起开采沉陷。
Conventional mining mode is very hard to acquire the economic level, so hydraulic fracturing technology must be done.
常规开采方式很难取得经济产能,必须进行压裂改造。
UCG is promoted as a relatively clean method of exploiting coal seams that are too deep or thin to be tapped economically using conventional mining.
相对于传统的采矿技术来说,煤炭地下气化技术在开采过深或过浅煤层时更为适用,这种技术不仅开采成本较低,而且开采过程较为清洁。
At the moment, this process costs more than ten times as much as conventional mining, but some countries might regard that as a small price to pay for security of supply.
目前来说,这个工艺的成本要十倍于传统的开采铀矿,不过一些国家可能会把它看作是为供应安全而付出的小小代价。
This paper introduces the concepts of original association rules and proves all rules in the rules set mined by conventional mining algorithms can be generated by the original association rules.
该文介绍了原关联规则的概念,证明了传统算法挖掘出的关联规则集中的任何规则,均可以由原关联规则导出,而原关联规则的数目远远小于传统算法挖掘出的关联规则数目。
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。
"Conventional cattle raising is like mining, " he says. "It's unsustainable, because you're just taking without putting anything back.
“传统的养牛方法就像挖矿”,他说,“那是不可持续的,因为只有产出而没有投入。
The conventional framework for mining association rules is the support-confidence framework which has some limitations.
传统的关联规则数据挖掘的支持度-置信度框架存在着弊端。
In mining the extremely fractured thin ore body, the separation of waste rock in the conventional shrinkage stoping was replaced by the separation of the rich ore and retaining the lean ore.
对极破碎薄矿体的开采,采用了将常规的留矿法中分选废石改为分选富矿石留贫矿石的采矿方法。
This article gives a detailed analysis of the characteristics of conventional surface mining equipment and techniques as well as problems arising from mining in coal seams with difficult conditions.
针对露天煤矿复杂煤层的地质条件,全面分析了传统的露天采矿设备、工艺形式的特点和在复杂煤层开采中存在的问题。
Conventional oil shale mining method has higher coat because of restricting by a good many factors.
常规油页岩开采方法,由于受诸多因素限制成本较高。
However, conventional text mining technology cannot achieve high accuracy, because it cannot effectively make use of the semantic information of the text.
传统的文本挖掘方法由于不能有效运用语义信息而难以达到更高的准确度。
A plane nonlinear program of damage module is compiled. The FEM program of damage module and conventional finite element module are used to calculate and analyze a mining slop.
编制了损伤模型的平面非线性有限元程序,并采用损伤模型和常规有限元模型的有限元程序对某矿山边坡进行对比计算分析。
Therefore, the conventional staggered distance model of ultra-close thin coal seam group during combined mining is put forward; and the theoretical research and physical simulation are carried out.
因此提出极近距离薄煤层群联合开采常规错距开采模型,并进行理论和物理模拟试验研究。
Tailing and coarse gravel from iron ore mining and dressing are produced into tailing brick instead of conventional aggregates and clay.
利用铁矿采选过程中产生的尾矿及粗粒砂石代替传统砌块生产中的部分骨料及粘土生产尾矿砖。
Physical simulation test results show the feasibility of the conventional staggered distance in combined mining.
物理模拟试验结果表明,常规错距下联合开采技术上是可行的。
This paper analyses problems concerning the conventional continuous loading structure in open mining deep borehole blasting.
本文分析了露天矿深孔爆破长期沿用的连续装药结构存在的问题。
Mining the conventional reagents for new application has now become the focal point of spectroanalysis for analysts in many countries.
如何将经典试剂更好的应用于光谱分析领域,开发其新用途,提高分析方法的灵敏度和准确度,越来越受到分析工作者的重视。
Mining the conventional reagents for new application has now become the focal point of spectroanalysis for analysts in many countries.
如何将经典试剂更好的应用于光谱分析领域,开发其新用途,提高分析方法的灵敏度和准确度,越来越受到分析工作者的重视。
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