查询词典 data mining

The author made in-depth research and analysis in Web log mining. In this paper, by mining Web log,some user browsing patterns are discovered such as association rule, clustering pattern, accessing path and so on. Then those patterns are applied to design Web site and improve Web function.

本文作者对Web日志挖掘作了系统性的研究，通过对Web日志的挖掘，找出用户浏览页面的关联规则、聚类信息、访问路径等，并把它们应用到Web站点的智能化设计中。

Based on User Session File, which is the result of the preprocessing phase of Web Log Mining, this paper presents a Web Log Mining method for the recognition of users browse patterns under the Extended Oriented Tree model.

Web日志挖掘的主要目的就是获得用户在网上的浏览模式，也就是了解用户在网上的行为，以便为站点管理者提供改进意见。

To find out the reasons for the frequent mining accidents and preventive measures, the authors use of historical analysis, comparison and logical method of mining accidents were related to research and analysis.

为找出矿难频发的原因和防范措施，作者运用历史分析法、比较法和逻辑推理法对矿难进行了相关研究与分析。

Maffei Corporation PVC-U drainage pipes to the production line, the German company Barton Rumsfeld plastic production line and the Hong Kong Chen Hsong injection molding machine and other advanced production equipment, use of hi-tech means of production "Jinde" brand aluminum PAP composite pipe, PPR aluminum-plastic tube, PE-X cross-linked polyethylene pipe, PE-RT polyethylene pipe temperature, PPR plastic pipes, PE gas pipe, PE water pipe, PE mining pipe, HDPE large caliber double-wall corrugated pipe, HDPE Large Diameter Winding Pipe, PVC-U new composite pipes, PVC-U to the water pipes, cable sheathing, etc., and be compatible with the brass pieces, PPR pipe fittings, PE-RT pipe, PE water supply pipe pieces, PE gas pipe pieces, PE mining pipe pieces, PVC pipe fittings and the corresponding installation tools.

玛菲公司PVC-U给排水管生产线、德国巴顿菲尔德公司全塑生产线及香港震雄注塑机等先进生产设备，采用高科技手段生产"金德"牌PAP铝塑复合管，PPR铝塑管、PE-X交联聚乙烯管、PE—RT耐高温聚乙烯管、PPR全塑管、PE燃气管、PE给水管、PE矿用管、HDPE大口径双壁波纹管、HDPE大口径缠绕管、PVC—U新型复合排水管、PVC—U给水管、电缆护套管等和与之配套的铜管件、PPR管件、PE—RT管件、PE给水管管件、PE燃气管管件、PE矿用管管件、PVC管件及相应的安装工具等。

The paper discusses main environmental geology problems caused by mining of coal, such as mining slump, land subsidence. Karst slump, soil hole slump and groundwater meagerness, pollution caused by mine water and coal gangue.

概述了淮南矿区采矿引起的负环境效应，如采矿塌陷、地面沉降、矿坑排水疏于引起的岩溶土洞渴陷、地下水枯竭、矿井水和煤矸石对环境的污染等。

In the tunnel tunneling and in the process of the working surface mining, we can find out the water fault and the structure in advance, investigates thoroughly the hydrogeological conditions, and adopts seals off measure and some other reinforcement, it is a essential method that can realizes the under the water body and the bearing pressure aquatic security mining.

在隧道透纳和工作表面的采矿的程序中，我们能预先发现水过失和结构，彻底地调查 hydrogeological 情况，而且从尺寸和一些其他的增强收养印章，它是能了解的一个必要的方法那在水体和举止压力水生动物安全采矿之下。

In 2000,the area below 400 meters was also watershed,mining sites and settlements,the proportion of both unutilized land below 400 meters and woodland between 400 meters and 800 meters raised a little,it showed that most woodland transform into the other types of land use in low altitude area,however,most unutilized land and the other types of land use transform into woodland in low and mediad altitude area,and the changes in woodland had metastatic trends in low and middle altitude area in the years from 1988 to 2000.The area proportion between 400 meters and 800 meters raised a lot in mining sites and settlements,the total distributed area on woodland had a trend of rising,while the distribution in pasture had a trend of decreasing.

在2000年，400m区域以下依然是水域和居民点及工矿用地，未利用地比例在400m以下有所上升而林地比例在400m～800m有所上升，表明在1994年至2000年间，低海拔地区许多林地转化为其他土地利用类型，而在中低海拔地区大量的未利用地和其他土地利用类型转化为林地，林地的变化有向中低海拔转移的趋势。2006年居民点及工矿用地在400m至800m区域面积比例增加，林地类型分布区域整体呈上升的趋势，草地分布区域呈下降的趋势。

The essence is how to use the mine microseism, under the unchanged mining intensity, which occurs upon accumulation of the respective low stresses, to predict the next extremum mine microseism due to occur during the stress mining environment classified by the increased isostress gradient instead of a period divided by the human experience.

其实质是在开采强度保持不变的前提下，用各自较低应力环境累计发生的矿山微震，预测下一个按等应力梯度增高的应力强度环境开采期间将要发生的极值矿山微震，而不是人为经验划定的某一时段。

The company was founded in 2007, mainly engaged in molybdenum concentrate, molybdenum trioxide, molybdenum calcium, molybdenum iron, production and operation activities; lead, zinc, copper, germanium ore, iron ore and other products, building materials sales business, business own mining resources, with mining, elections, rule of production capacity, the company has a strong, strong technical force, strict production quality.

本公司成立于2007年，主要从事以钼精矿、三氧化钼、钼酸钙、钼铁、的生产经营活动；铅、锌、铜、锗矿、铁精矿等产品、建筑材料销售方面的业务，企业拥有自主矿山资源，具有采、选、冶生产能力，公司实力强劲，技术力量雄厚，严把生产质量关。

Enterprises leading products for SL3NB, QZ3NB, QF pump, QZ-9 series of drilling pump, the campaign mainly used for different depth of the oil field drilling, workover, cementing, water injection and other mining operations, industrial and mining enterprises can also be used for other transportation Mud, clay plastic, mortar, and other media.

企业主导产品为SL3NB、QZ3NB、QF泵、QZ-9等系列钻井泵，该系列主要用于油田不同井深的钻井、修井、固井、注水等工矿作业，也可用于其它工矿企业输送泥浆、粘土胶、灰浆等介质。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。