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矿井

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The disease appears to have originated in New York state, in caves and mines in the Adirondack mountains.

该疾病似乎起源于纽约州阿迪郎达克山上的洞穴及矿井中。

Shuangbai County teak coal mine rock Adit sub-head coal and gas outburst accident occurred.

双柏县麻栗树煤矿岩子头矿井平洞发生煤与瓦斯突出事故。

By analyzing and researching on methane concentration in the monitoring space of adjacent sensors, function relationship between interval, alert time, air flow velocity and section area of roadway is concluded while theory base and methods of sensor interval is put forward for relative safety criterion.

结果表明:巷道瓦斯平均浓度与风速、巷道截面积、瓦斯涌出强度、传感器间距之间存在一定的函数关系,矿井监控系统所需要的最短响应时间是目前迫切需要解决的问题。

On the platform of VB6.0 and Microsoft Access, by studying the measurement methods and data processing principles of differential pressure meter, base point's method with air gauge and double point's method with air gauge, data processing software was developed about resistance measurement for mine ventilation.

在研究压差计法、气压计基点法和气压计双测点法3种常用矿井通风阻力测定方法及其数据处理原理的基础上,以VB程序语言和Microsoft Access数据库管理软件为平台,开发了矿井通风队力测定数据处理软件。

This article take 9309 coal mining face in some mine as an example, through the analysis mine heat source, uses the airflow temperature forecast model, had forecast the distribution of airflow temperature in coal mining face and two cross heading channels, and has carried on the contrast with the measured results.

本文以某矿9309工作面为例,通过分析矿井热源,利用工作面风温预测模型,预测了工作面和两顺槽的风温分布,并与实测结果进行了对比,结果表明热源分析结合风温预测能对工作面的热害程度进行准确预测,这对于矿井通风设计及局部降温设计具有重要意义。

Mine transient electromagnetic method is one of mainly geophysical methods, which are used to predict water inrush structures nearby the roof, bottom and driving face in roadway. Compared with ground transient electromagnetic method, this technique has many advantages: high resolution, small volume effect, flexibility and high efficiency. However, relatively slow development of its fundamental theory makes it become an immediate problem to be solved.

矿井瞬变电磁法勘探是预测巷道顶、底板和掘进工作面附近突水构造的主要物探方法之一,与地面瞬变电磁法勘探相比,该方法具有分辨率高、体积效应小、灵活和高效等优点;但其基础理论的发展却相对滞后,使之成为矿井瞬变电磁法勘探技术中亟待解决的问题。

The current state of conveyor belt fire and harm caused by the fire are discussed in this paper.

介绍了矿井胶带机火灾的发火现状、矿井火灾的危害,阐述了模糊神经网络算法在胶带机火灾探测中的应用原理。

Guojiazhuang colliery using this method changed the strain condition in the working face need by carry the project in ground and underground. So it prolonges the collierys service time and assures the normal production. With it the colliery got social and economic profits.

国家庄煤矿通过在地面和井下实施封堵后,改变了煤矿工作面接续紧张的局面,提高了矿井的服务年限,保证了矿井的正常生产,取得了很好的社会和经济效益。

This paper applies approximate equation to describe the characteristic curve of an axial flow fan, for the purpose of determining its working system,and is intended to apply the equation method for enlarging the extent of the analy-tical method, commonly used for determining the working system of axial flow fan and the ventilating syetem of a mine.

本文应用近似方程来描叙轴流式扇风机的特性曲线,其目的要确定矿井轴流式扇风机的工作制度,并且企图使扇风机工作制度与矿井通风制度上应用方程法来扩大分析法的范围。

The development of coal mine production mechanization increasingly requires power supply of the low-tension network in mine to keep higher and higher continuity , security and reliability , also puts forword high demand to the measurement and protection of the power supply device feedback switch .

随着矿井生产机械化水平日益提高,对矿井低压电网的供电连续性,安全性及可靠性要求越来越高,也对供电设备馈电开关检测与保护提出高的要求。

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但我们并不在乎沙场中的显露。

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啊!不用提了。提到肉,真是糟透了。

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