Assessment on mine air quality by using pollution loss rate is conducted.
使用污染损失率法对矿山井下空气质量进行了评价。
As a new-style control technology of mine air flow, mining air curtain has widely application prospect.
矿用空气幕作为一种新型的矿井风流调控技术，具有广泛的应用前景。
The method of system transformation, combining sealing are consequently used, and the problem of small mine air leak is solved.
采取系统改造，结合堵漏的方法，解决了小井漏风问题。
Introduced the movement circumstance of the Longgu coal mine air compressor machine, points out to circulate the medium shortage.
介绍了龙固煤矿空气压缩机的运行情况，指出了运行中的不足。
Full scale experiment shows the additive composition and its alkaline property is good for use in the circulating water system of coal mine air compressor.
工业性试验表明，该药剂配方及相应的碱性运行方案比较适合煤矿空压机循环水系统。
In 2003, Angulos was driving excavation equipment in a large copper mine when he felt a rush of air.
2003年，安格洛斯在一个大型铜矿矿山驾驶采掘设备时，突然感到了一股气体扑面而来。
Exposure to a gas leak in an abandoned mine induced a former Army Air Corps officer to lapse into a form of suspended animation.
由于呼吸到了废弃矿井中的泄漏气体，一名前陆军航空队军官陷入了一种假死状态。
The ground is cold and moist, with the chill factor amplified by ventilation fans used to blow fresh air into the mine, and the sprinkler that keep the coal dust down.
因为有通风设备往里面输送新鲜空气，还有洒水器不断地给煤浇水以降温，所以地下既阴冷又潮湿。
Crews did start down into the mine yesterday morning, but they had to come back out because the air quality got worse and threatened a new blast.
昨天早上，搜救人员就已经到达矿井下，但是由于空气质量越来越差，可能会导致新的爆炸，他们不得不出来…
A proposal for control of airflow in a mine fire is proposed by optimization of air quantity in a ventilation network.
提出了用通风网络风量优化计算的方法求解矿井火灾时期的风流控制方案。
The air quality analysis in coal mines is a new idea. it is a new scientific method for understanding the environment in mine.
矿井空气品质是矿井通风理论的新思路，是人们认识矿井空气环境的一种科学方法。
At the time, he apparently believed he had shot down an Antonov-26 military plane of the Ukrainian Air Force, saying it landed near a mine named Progress.
当时，他显然相信自己击落的是乌克兰空军的A - 26，说飞机坠落在“进步矿”附近。
Therefore, further measures for individual prevention and reduction of mine dust concentration in the air were considered to be necessary for reducing the incidence of lung cancer.
为此，加强防尘措施，降低环境矿尘浓度，可能对减少该矿肺癌发病具有重要意义。
Taking a practical fire failure in mine to be as an example, this paper analyzes qualitatively the reasons resulted in inversed air current within fire period.
以一个实际矿井火灾事故为例，定性分析火灾期间风流逆转原因及稳定风流措施。
Direct discharge of coal mine methane into the air not only causes waste of resource, but increases the greenhouse effect.
矿井乏风直接排放到大气中，不仅造成了资源的浪费，而且加剧了温室效应。
The use of frequency convert to regulate the speed of rotation according to the character of mine fan can reach the goal of the modulation of air flow and have a very good effect of saving energy.
根据矿井通风机的特性，使用变频器进行转速调整以达到调节风量的目的，且有很好的节能效果。
The importance for the mine to strengthen the maintenance of the air return way and the points needing attention in designing and allocating the ventilation shaft are pointed out.
同时提出生产矿山加强回风道维护的重要性，以及在设计和布置通风井时应注意的问题。
The experiments of mine wastewater of air floatation are presented.
对气浮法处理煤矿井下排水进行了试验研究。
A passageway or shaft in which air circulates, as in ventilating a mine.
通风道，换气坑空气流通的通道，如使矿井。
It was found that the main occupational hazards in nickel mine are air pollution (industrial dusts, nickel and other chemical agents), noise and heat stress.
该矿主要职业危害因素是生产性粉尘、镍及其他化学物所致空气污染、噪声以及高气温与热辐射。
In mine geothermal prediction, the instable heat transfer coefficient is an important parameter for heat transfer (between country rock and air flow) computation.
在矿井地热预测中，矿井风流与围岩之间的非稳定传热系数是传热计算的重要参数。
The function of the main fan in coal mine is to keep fresh air and reduce the concentration of gas.
煤矿主扇风机的主要功能是保证井下空气畅通新鲜，降低瓦斯浓度。
Mine, the causes of natural thermal potential difference in return air in main shaft and its influence on mine ventilation system and the control methods.
阐述了造成主井回风的自然热位差产生原因和对通风系统的影响，以及治理办法。
The method and principle of status monitoring system of air compressor used in coal mine were introduced. The design of hardware and software were discussed in detail.
介绍了煤矿空压机状态监测系统的基本原理和方法，详细阐述了系统的硬件电路设计和软件设计。
The method and principle of status monitoring system of air compressor used in coal mine were introduced. The design of hardware and software were discussed in detail.
介绍了煤矿空压机状态监测系统的基本原理和方法，详细阐述了系统的硬件电路设计和软件设计。
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