查询词典 mining

Therefore, it has become an important development direction for our mining industry to protect mine's environment, and to keep mine production with continuance and steadiness for a long periodWithin recent years, many new problems were brought forward through wasteless mining experience, in which, the right design and objective appraise for the wasteless mining is one of its problems.

另外，作者在研究中提出的一些独到的见解与方法，对发展与完善无废开采设计与评价的理论体系有重要的意义。我们知道，实现无废开采的关键：一方面是要尽量扼制废料的产出，另一方面是要寻找有效的方法对产出的废料进行治理。而要扼制废料的产出，必须要根据矿山开采的特点，合理确定开采品位，减少废石的采掘，控制采矿过程中废石的混入。

Some examples are given. Some methods and fruits of the tech-economic evaluation for mining projects are used as reference. The re-evaluation of mineral resource is briefly introduced. It is detailed to convert the mining flotsam into resource. The paper presents a new method, comprehensive index method, to evaluate the actualization degree of wasteless mining.

文中借鉴了矿山项目技术经济评价方面的方法与成果，对矿产资源的再次评价及矿山废料资源化评价进行了讨论：提出了应用综合指数法对无废开采实现程度进行评价的理论体系；应用神经网络系统对矿业可持续发展进行评价，建立了相应模型及标准。

Part Ⅰintroduces the development and research status of data mining, anglicizing the application prospect of data mining technique in mobile network analysis, explaining in detail the problems that should be solved in analysis of mobile network based on the data mining.

介绍了数据挖掘的发展与研究现状，分析数据挖掘技术在移动网络分析中的应用前景，具体介绍了基于数据挖掘的移动网络分析应解决的问题。2。

The large quantity of input to the comprehensive coal mining equipments leads to the booming of the coal mining equipment market,and the brutalizing of competition in medium and low grade coal mining equipments.

煤矿综采设备的大量投入，煤机市场走热，中低端设备市场竞争激烈，高端设备较为短缺，用户亟需适用性好、性价比佳的设备。

The dissertation focused on the technologies, algorithm and application of WBSDM, and the main studies and new contributions are described as follows: 1. Technologies of spatial data mining and web-based data mining are summarized and then the concept of WBSDM is put forward and its main functions and meaning of research are disserted in detail. 2. The framework of web-based spatial data mining is presented. And its background, definition, features, functions, system structure, implementation strategy, key technologies and so on are illustrated systematically.

本项研究旨在总结空间数据挖掘技术和基于Web的数据挖掘技术及WBSDM的应用前景；系统地提出基于Web的空间数据挖掘框架；设计基于XML/J2EE的WBSDM平台模型；将MAS(Multi-AgentSystem)技术引入WBSDM并提出应用策略；研究基于粗糙集的空间知识库刻画模型，提出并实现高维数据的特征提取和数据浓缩算法；提出并实现基于知识库的知识发现模型；构造一个WBSDM的原型实验系统，对本文的相关研究进行验证。

ABSTRACT In recent years data mining gets more and more attention and becomes one of the hottest spot in IT research field. Researchers from various fields show great enthusiasm for the subjects in data mining and are willing to devote themselves to the new field because data mining syncretizes artificial intelligence, statistics, database, and machine study. At the beginning of this new century, it is a large-scale amalgamation of subjects.

短短的几年时间，数据挖掘风靡全球，成为IT业近年来非常热门和前沿的研究方向之一，由于数据挖掘融合了人工智能、统计学、数据库、机器学习等各个领域的理论与技术，使得不同学科领域的学者对DM的研究表现出了前所未有的热情和参与精神，在世纪交替的特殊时期，这是又一轮规模空前的学科大融合。

The basic concept and general knowledge of data mining were given firstly, and the characteristics and research methods of data mining procedure were explained based on the test-driving database of WS9 aero-engines. Rough set and decision tree, these two classification mining methods were used to extract decision rules, regression analysis was utilized to find the relationship between variables, and the tendency also was predicted.

论文阐述了数据挖掘技术的基本概念和一般知识，分析了基于WS9发动机试车数据库数据挖掘的特点和研究方法，选择了粗糙集和决策树分类挖掘方法提取决策规则，利用回归分析方法发现变量之间的函数关系，并进行趋势预测。

To solve the tradition technique difficulties of water protection mining in the shallow coal seam with thin bedrocks, based on the analysis of the roof water inrush channel features, from the aspect of mining methods. A new set of roof water protection mining techniques were put forward.

在分析顶板导水通道特征基础上，针对薄基岩浅埋煤层采用传统技术实现保水开采的难点，从开采方法本身采取措施，提出了一套较为系统的薄基岩浅埋煤层保水开采新技术。

In order to ascertain a reasonable strip mining project for the coal mining under villages with thin bedrocks under the thick alluvium in Linhuan, the characters of surface subsidence in strip mining were studied by numerical simulation method based on discrete element.

为了确定临涣煤矿厚表土层薄基岩下合理的村庄压煤条带开采方案，采用离散元数值模拟方法研究厚表土层薄基岩下条带开采地表沉陷特征。

Thin bedrocks; shallow coal seam; water protection mining; rapid mining of coalface; supporter resistance; reduce mining height; filling

薄基岩；浅埋；保水开采；工作面快速推进；支护阻力；降低采高；充填

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。