查询词典 mining

Have disastrous environmental effects, especially strip or surface mining. Roughlyby strip mining.

有关煤的使用的最大问题之一在于煤的开采可能会造成灾难性的环境破坏，特别是掠夺式的开采或表面开采。

The resultindicated that, this method to decide strip mining parameter by integrated analysis is reliablehighly, it is one economical feasible method and has a good application value, it also hasimportant reference value regarding the mining area that has similar geological and the miningcondition.

结果表明，这种综合分析确定条带开采参数的方法，具有较高的可靠性，是一种经济可行的方法，具有较好的应用价值，对于类似地质和开采条件的矿区具有重要参考价值。

Frequent subgraph mining is an active research topic in the data mining field.

频繁子图已成为数据挖掘领域研究的热点之一。

College of Computer and Information Engineering,Jiangxi Agriculture University,Nanchang 330045,ChinaFrequent subgraph mining is an active research topic in the data mining community.

如何从大量的图中挖掘出令人感兴趣的子图模式已经成为数据挖掘领域研究的热点之一。

With the mining depth of increased, the sublevel height must be increased so as to decrease mining cost.

这样的参数可以说从60年代无底柱分段崩落法引进到我国，一直成为无底柱分段崩落法的结构的主导。

ABSTRACT Sublevel caving method is a high efficiency mining method for underground mine, it has many advantages, such as a simple mine stope, good work condition, high mechanization and low mining cost. Up to now, this method has been used in more than 85 percent of all underground iron mine.

无底柱分段崩落法是一种高效率的采矿方法，具有采场结构简单，作业条件好，机械化程度高，回采强度大，采矿成本低等优点，迄今应用该采矿方法采出的矿石量约占我国地下铁矿采出矿石总量的85％。

And it will be prospected in controlling coal-mining-induced subsidence in other big coal mining areas.

该成果对其它大型矿区的采煤沉陷控制也将具有一定的参考价值和推广应用前景。

During the process of mining maximal frequent item sets, when minimum support is little, superset checking is a kind of time-consuming and frequent operation in the mining algorithm.

最大频繁项集的挖掘过程中，在最小支持度较小的情况下，超集检测是算法的主要耗时操作。

It is a highly serious problem of geotechnical engineering that underground mining arouse terrane movement and ground subsidence, which, at the same time, causes a great deal of ground fissure from coal mining.

煤层的地下开采引起煤层上覆岩层移动变形和地表沉陷已经成为一个非常严重的岩土工程问题，同时伴随着地表沉陷在开采范围内会产生大量的地表裂缝。

So, in order to achieve safety mining , itis necessary in the course of underground mining that research the super terrane moving-rule and the effect on ground movement and the stope ground pressure's regularities ofdistribution.

因此，为实现矿山的安全开采，在地下开采过程中，必须对地下开采引起的上覆岩层的移动规律及其对地表移动的影响和采场地压分布规律进行研究。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。