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Talking about gas management in low gas mine 浅谈低瓦斯矿井瓦斯管理问题
The Controlled Circle Ventilation on the Coal Face of Low Gas Mine 低瓦斯矿井采煤工作面受控循环通风
The theory of gas geology is applied to study the prob lem of gas unusual gush at first,and set-ting up systematic research thinking and method of gas geology in the low gas mines. 首次运用瓦斯地质理论研究低瓦斯矿井瓦斯异常涌出问题,形成了系统的低瓦斯矿井瓦斯地质规律的研究思路和方法。
According to domestic and international statistic data , the occurrence probability of gas explosion is not very high, but it occasionally occurs in gas abnormal effusing area of low gas mines. 国内外统计资料表明,高瓦斯矿井发生瓦斯爆炸事故的机率并不是很高,低瓦斯矿井的瓦斯涌出异常区却时有瓦斯爆炸事故发生。
gas drainage in low gas mines drainage 瓦斯抽放
Analysis for Gas Emissions Rules in Gas Anomaly Districts of Low Gas Mine and Technology of Distinguishing - Source Controlling 低瓦斯矿井瓦斯异常区瓦斯涌出规律分析与分源治理技术
Research on Gas Unusual Gush of Coalbeds In Low Gas Mines 低瓦斯矿井煤层瓦斯异常涌出的研究
low gas mine 低瓦斯矿井
The gas grade appraising in the coal mine is a main approach to estimate whether a coal mine is a low or high gas mine,or coal &gas outburst one,and to prevent gas explosion and mine firing. 矿井瓦斯等级鉴定是确定煤矿属于低瓦斯矿井、高瓦斯矿井还是煤与瓦斯突出矿井以及预防煤矿瓦斯爆炸危险和矿井自然发火危险等的一个重要手段。
Thousands of people demonstrated in the street for lower gas price. 成千上万的人走上街头游行，要求降低燃气价格。
Best staff to Export in Asia, good looking , good dumper, with low gas using. 50cc Engine. Your Best choose. 轻便环保燃油助力车.;低耗油;低噪音;城市新动力
High, medium and low gas pipeline 150 km, 14 offtake station, building supply rate of more than 95%. 高、中、低煤气管道150公里，14个煤气调压站，楼房供气率达到95%25以上。
There are 42 mine wells in four major mine areas, Jixi, Hegang, Shuangyashan and Qitaihe, in Heilongjiang province, China, 70% of which are high gas mine wells. 黑龙江鸡西、鹤岗、双鸭山和七台河四大主要矿区有矿井42个,其中70%25都是高瓦斯矿井。
There are 42 mine wells in four major mine areas,Jixi,Hegang,Shuangyashan and Qitaihe,in Heilongjiang province,China,70%of which are high gas mine wells. 黑龙江鸡西、鹤岗、双鸭山和七台河4大主要矿区有矿井42个,其中70%25都是高瓦斯矿井。
In recent years, Northwest Sichuan Gas Mine of PCL Southwest Branch, performed the gas drilling for 5 wells such as Well Pingluo 19 etc. in the west Sichuan area. 近年来,中国石油西南油气田分公司川西北气矿先后在川西地区平落19等5口井实施了天然气钻井,实践的数据和结果充分体现了天然气钻井的优越性,取得了良好的勘探效果,并创国内天然气钻井多项新水平。
High burning heat ratio and low gas consumption. In comparison with traditional electric baker, it saves the power Baker plus and power circuit cost, economic and practical. 燃烧热效率高且耗气量少。与传统电烤炉相比，可省去电力增容和配电线路等所需支出，经济实用。
Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. 高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。
The article introduces circnsmstance of Gaocheng coal mire's,discusse method of airiness ability assess and decide in low gas' outrstanding mineral well. 介绍了告成煤矿的基本情况,探讨了该矿在低瓦斯条件下,突出矿井的通风能力核定方法。
Sealed-design assures the battery pool of the lowest gassing. 密封式设计能确保电池塘的气体产生率减至最低。
A low gas pressure sensor based on micro-hotplate(MHP) is designed and successfully fabricated by a standard CMOS process followed by surface micromaching. 研制了一种采用CMOS工艺和表面牺牲层技术加工的微热板式低气压传感器。