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In accordance with the characteristics of coal mining main drainage pump and present state of control and measurement technology,this paper introduces a kind of modularized control and measurement system for coal mining main drainage pump .

针对煤矿主排水泵的特点和当前测控技术的发展，介绍了一种模块化的煤矿井下主排水系统计算机监控系统。

In accordance with the characteristics of main drainage pump for coal mine and the present development of control and measurement technology, the paper introduces a kind of modularized computer monitoring system for main drainage pump underground coal mine.

针对煤矿主排水泵的特点和当前测控技术发展，本文介绍了一种基于模块化的煤矿井下主排水系统计算机监控系统。

The study of methane-accumulation prevention and methane drainage theory and technology is the key for solving the problem of mine methane explosion accidents while the study of coal and methane outburst prediction together with the preventive measure sand technology is the basic guarantee to the controlling of coal and methane outbursts.

防止瓦斯积聚与瓦斯排放理论及其技术的研究，是解决矿井瓦斯爆炸事故发生的关键所在，而研究煤与瓦斯突出的预测及其防治措施技术是控制煤与瓦斯突出发生的根本保证。本文根据上述两方面存在的瓦斯问题，以理论、实验、计算机数值模拟和井下试验相结合的方法开展研究工作。

By doing so, the temperature ion driving face can be lowered down by 3~7℃ while that on coal mining face by 3~5℃, greatly improved the operation condition and provides a reference for coal mines with similar condition.

系统运行以后，掘进面温度可以下降3~7℃，工作面温度可以降低3~5℃，从而大大改善了采、掘工作面的作业条件，并为类似条件下研究热害治理问题提供了思路。

Basing on the theory of two-phase flow of gas and solid, and the characteristics of coal mine driving working face , using the discrete phase models of computational fluid mechanics to simulate the dust concentration during the ventilation process of coal drift driving with exhaust ventilation.

根据气固两相流理论，针对矿井掘进工作面的特点，采用计算流体力学的离散相模型对掘进工作面通风过程中粉尘浓度进行数值模拟，总结抽出式通风掘进巷道中粉尘浓度的沿程分布及变化规律。

Friend:Under the equipment which introducted to you mainly uses in:Coal coal egg production;Each kind smelts the diamond dust material cool suppression ball group production.

型煤压球机，压球机，球蛋成型机批发市场行情，规格尺寸，产品型号，使用说明书/手册，工作原理等详细信息

We select some coal samples which frequently used in the power plants in Zhengjiang province and analyze the heat agravic characteristic. TG and DTG curve of different coal samples can be got under different experiment conditions. The heat agravic curves of burning processions can be divided into three types in this paper.

通过对不同煤样在不同的试验条件下得到的热分析TG和DTG曲线，文章将煤粉燃烧过程的热失重曲线划分为三种线型，然后对热天平试验中所呈现的各种线型进行分析和研究，分析了试验条件对反应线型的影响。

This paper introduces the general situation of the construction of Baijiapo airshaft in Shaqu Coal Mine,Huajin Coking Coal Limited Company,expounds its construction scheme and equipment in the bedrock section ,and illustrates the construction methods and the rapid construction measures.

介绍了华晋焦煤有限责任公司沙曲矿白家坡风井的工程概况和基岩段施工方案与施工设备，对施工方法和快速施工措施进行了阐述。

Makes the decency coal, the pearlite and the vermiculite carries on between the root nodulebacteria and the alfalfa variety match as the matrix, alfalfas nitrogen fixation effect and thegrowing trend is higher than other two kind of matrix, the decency coal may first take the highlyeffective strain screens matrix.

以风化煤为基质进行根瘤菌与苜蓿品种之间的亲和性的匹配试验中，苜蓿的固氮效果和长势均高于珍珠岩和蛭石这两种基质。因此，风化煤可优先作为高效菌株筛选的基质。

That polyring aromatised hydrocarbons, dehydroabietic acid, other tricyclic diterpanoic acids and pentacyclic triterpanoic acids are not existed or in a much low amount in Zhaotong brown coal resin is distinguished from those resins isolated in Xundian, Liaohu, Shulan brown coal waxes in China.

稠环芳烃、松香酸、去氢松香等环状化合物含量很低或不存在，是昭通褐煤蜡与国内其它褐煤蜡组成的重大差别。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。