查询词典 data mining

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。

Through the contrast analysis on the chemical constitution of the magnetic iron ore and the plagioclaseamphibolite in Nanling ultra poor magnetite, and the analysis of graphs of and (FeO+Fe2O3+TiO2)Al2O3MgO, combining the geological features of mining area and the ore body characteristics, the conclusion can be drawn as follows: the plagioclaseamphibolites including magnetite and the plagioclaseamphibolite in Nanling mining area are formed from the oceanic tholeiite with rich iron after the deteriorating, and their genesis types should be the ultrapoor iron deposit of weathered residual origin.

通过对南岭超贫磁铁矿的磁铁矿石、斜长角闪岩化学成分的对比分析，结合矿区地质特征和矿体特征，对矿体进行n-n和w( FeO+Fe2O3+TiO2)-w(Al2O3)-w 图解分析，结果显示南岭矿区的含磁铁斜长角闪岩和斜长角闪岩是大洋富铁拉斑玄武岩经变质作用而形成的，矿床的成因类型为风化残积型超贫铁矿床。

Currently in the whole world,Beypazari trona solution project is the largest mining engineering with the methods of solution mining and intersected well drilling.

土耳其贝帕扎里天然碱矿采卤工程是目前世界范围内采用对接井水溶开采方法进行采矿的最大规模的天然碱采矿工程。

It is understood that in a large number of text mining technology with the manufacturers, Beijing TRS Information Technology Co., Ltd is the first to have real practical use text mining products enterprises.

据了解，在数量众多的拥有文本挖掘技术的厂商中，北京拓尔思信息技术股份有限公司是国内第一家拥有真正实用化文本挖掘产品的企业。

To bigger and stronger, so long enterprises, companies rely on the China University of Mining and Technology and personnel, co-developed with the advanced international level, fill the gaps in the series LZJ slurry pump and XS series of two-cycle suction pump, the product line Widespread use of mining, coal, petroleum, chemical, metallurgical, power, infrastructure construction, dredging and other businesses.

为了做大做强、做久企业，公司依托中国矿业大学的技术和人才优势，共同开发出了具有国际先进水平、填补国内空白的LZJ系列渣浆泵和XS系列双吸循环泵，该系列产品广泛使用采矿、煤炭、石油、化工、冶金、电力、基础建设、清淤等各行各业。

The company produces and supplies a full range of tyres including Mining Bias OTR Tyre, Construction Bias OTR Tyre, Radial Mining OTR Tire, Radial construction OTR tires, industrial tyre, heavy duty truck tyre, agricultural tyre and solid tyre, more than 100 specifications.

该公司生产和供应全系列的轮胎，其中包括采矿偏见工程机械轮胎，建筑偏见工程机械轮胎，径向采矿工程机械轮胎，径向建设工程机械轮胎，工业轮胎，重型卡车轮胎，农业轮胎和实心轮胎， 100多个规格。

Analysis is made on the influences of the main constructions in the mine on the roof wall rock and the water containing layer, the ubiety between the roof and the interlayer or relative interlayer, the influence of the water containing layer and exploration drilling on jamb mining. The safety mining depth as well as the height of collapsed belt and the cranny guiding water are calculated. Furthermore, the ANSYS software is adopted to simulate the stability of the cover terrane and the maximum permit exposure area.

分析了矿区内主要构造对顶板围岩及含水层影响、顶板与隔水层和相对隔水层位置关系、含水层及勘探钻孔对矿柱回收的影响；计算了冒落带和导水裂隙高度及安全开采深度；用ANSYS有限元软件模拟了空区上覆岩层稳定性及最大允许暴露面积。

Among them, the assets placed in Mountain Coal Group 7 furniture have an independent legal personality of the coal trade companies 100% equity; inject assets of Mountain Coal Group held three coal mining companies and coal trade 18 shares, and its headquarters and domestic coal business-related assets and liabilities, the underlying asset Hill Coal Group include coal mining and coal trading business segment of the integrity of the two major operating assets.

其中，在山煤业集团7家具放置的资产有煤炭贸易公司的独立法人资格的100％股权，注入山区煤炭集团资产举行了三次煤矿企业和煤炭贸易18日的股票，其总部和国内的煤炭企业相关的资产和负债，基础资产山煤业集团包括煤炭开采和煤炭交易的两个主要经营资产的完整的业务部门。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。