煤矿

Sponsored by the province's Coal Mines Administration Bureau and the Coal Mine Safety Inspection and Supervision Bureau, coal mining executives gathered in Guiyang, a modest-sized city (by China's standards) of more than three million people, to discuss how the latest foreign technologies could help degasify China's 2,000 coal mines, both improving mine safety and reducing China's global output of air pollution.

主办省的煤炭管理局和煤矿安全检查监察局，煤炭高层齐聚贵阳，适度规模的城市，超过300万人，以讨论如何国外最新技术，将有助于degasify中国的2000煤矿，促进矿山安全和减少对中国的全球产量的空气污染。

This design on the main Nanshan coal mine methane drainage occurrence, the necessity and feasibility, drainage methods to determine the expected effect, as well as drainage, etc; and the elaboration of natsun mines in accordance with specific parameters on mine, some of the roadway and workface, drivage workface for gas drainage.

本设计主要对南山煤矿矿井瓦斯赋存情况、抽采的必要性及可行性、抽采方法的确定以及抽采效果的预计等进行相应的阐述；并根据南山煤矿的具体参数，对矿井的一些巷道及采煤工作面、掘进工作面进行瓦斯抽采。

By measuring and evaluating the extreme thermal environment in hyperthermal coal mine,the differences between the actual thermal environments in hyperthermal coal mine,current standards and research results of heat tolerance parameter area were analyzed,.

本文从高温高湿热环境的评价指标出发，对极端环境下人体的耐受力进行实验研究，通过对高热害煤矿的极端热环境进行测量与评价，分析了高热害巷道环境现状、使用的标准和人体耐受力参数区域研究结果的差异，指出了高热害煤矿巷道环境标准调整的必要性，并对下一步的研究工作提出展望。

As one of major monitoring techniques for forecasting the disasters in mine, Microseismic signal contains some special characteristics, such as rich composition of the spectrum and wide frequency band.

在煤矿开采过程中，煤层底板突水、淹井事故时有发生，严重影响煤矿的正常生产，但目前其预测的可靠程度与生产实际还有较大的差距。

Finally, a general ec ological res to ratio n plan of Mentougou district of Beijing city was made based on above theories and methods.

并以门头沟煤矿区为例对以上理论和方法进行了验证，编制了门头沟煤矿区生态修复总体规划。

Under the condition mentioned above there are so much disadvantages such as dispersal control equipments, large space occupied, complicated connection, high fault rate and so on which will lead to the suspending power supply to local fans and lead to ventilation to the turnned off planlessly and further result in accumulation of gas.

矿用局部通风机是煤矿井下掘进通风不可缺少的重要设备，使用量大、应用范围广，承担着为采掘工作面提供新鲜风流、排出有毒有害气体和粉尘、改善作业场所环境条件等重要任务，其工作可靠性直接影响着煤矿的安全生产和经济效益。

No matter the quality of coal, the size composition and water content as well, due to the bad environment of coal production and the vibration in the process of transportation, there always has some coal and other materials left which was very easy to cake on the bottom of the mine car after unloading. If we do not clean these remaining coal and rock meal soonly, they would be heavier and solider, which would increase the weight of mine car so that decrease the effective volume of it. Then it would not only affect the transportation ability of mine car directly and make the intense condition of the transportation system, but also increase the waste of electric power, and even make substantial difficulty in starting the spacial vehicle while transporting the electrical machinery truck. So cleaning the bottom of the mine car become espectially important.

不论煤质，粒度组成及含水量如何，由于煤矿生产环境的恶劣，加之在运输的过程中的振动等原因，卸车之后总会有少量的煤炭，煤矸等易粘结的物料粘结在矿车车箱底部及邻帮若不将这些残留煤，岩粉及时清除干净，则会越积越厚，越积越结识，增加了矿车自重，使矿车的有效容积减少，它不仅直接影响着矿车的运输能力，造成了运输系统的紧张状况，而且增加了电力资源的浪费，甚至使电机车运输是空列起动发生困难，所以清理车底的问题，在煤矿就显得尤为重要。

It is a good method in management of coal safty throu...

通过石圪节煤矿的实践证明，安全星光大系统管理法是一种行之有效的煤矿安全系统管理方法。

In order to prevention, control and extinguishing underground fires effectively, through the application of nitrogen injection for coal mine fire prevention, this paper discussed a very valuable and practical technology that nitrogen injection for fire control and prevention in coal mine well, it can be used for the prevention of coal spontaneous combustion, fire control and stifle the fire zone, controllable sealing and unsealing fire area.

为了有效预防、控制和扑灭井下火灾，通过煤矿对注氮防灭火的实践应用，认为以注氮为主的防灭火是井下预防火灾和减少火灾损失的一种非常有价值和实用的技术，它可用于煤矿自燃发火的预防、火势控制、窒息火区、可控制的缩封和启封火区。

China's State Administration of Work Safety says it has shut down 685 small collieries this year in an effort to improve mine safety.

中国国家安全监督管理总局表示今年已有685家小煤矿被勒令关闭，以改善煤矿的安全生产。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。