Predict changes in gas concentration is safety in coal mines of great significance.
预测瓦斯浓度的变化对煤矿安全生产有着重要的意义。
The control and prevention of gas hazard is an important issue of safety in coal mines.
煤矿瓦斯的治理和防范是煤矿安全的重要内容。
Coal and gas outburst is one of the important factors, which constraint production safety in coal mines.
煤与瓦斯突出是制约煤矿安全生产的重要因素之一。
Accurate prediction of gas emission is of great practical significance in guiding mine design and ensuring work safety in coal mines.
正确预测瓦斯涌出量，对于指导矿井设计和煤矿安全生产有重要的现实意义。
Steel rope is a hauling component in conveying mechanism in coal mines. Its service life directly relates to production cost and safety in coal mines.
钢丝绳在煤矿输送机构中作为牵引构件，其使用寿命直接影响到煤矿生产的成本及安全。
With safety Work laws being enacted and China's company integrating with theworld market, safety management become more and more important in coal mines 'production.
随着《安全生产法》的颁布和我国企业逐渐和世界接轨，安全生产管理逐渐成为煤矿安全生产中的头等大事。
Based on the features of operation and products used in underground coal mines, the author described the importance and necessity of management of safety signs on products of mine use.
文章在介绍煤矿井下作业特点和煤矿井下用产品特点的基础上，论述了国家对煤矿用产品实行安全标志管理的重要性和必要性。
The safety supervising system have been used widely in state-owned coal mines, but its function have not operate well because of no uniform management mode.
安全监控系统在国有煤矿得到了普遍应用，但没有一个统一的管理模式，不能充分发挥监控系统的应有作用。
There are more than 56% of mines in our country exist seams spontaneous combustion danger, seams spontaneous combustion fire serious influences coal safety production.
我国有56%以上的矿井存在煤层自然发火危险，煤炭自燃火灾严重影响煤炭的安全生产。
Stray current in coal mine underground is an important factor caused gas and coal dust explosion, which seriously threatened safety production in mines.
煤矿井下杂散电流是引起瓦斯、煤尘爆炸的一个重要起因，严重威胁到煤矿的安全生产。
The accidents of sliding train in inclined lane underground coal mines will not only damage the facilities, but also threat the safety of equipments and people.
煤矿井下斜巷发生跑车事故，不仅损坏设施，而且危及设备及人身的安全。
Gas disasters seriously influence the coal production safety in China coal mines. Gas extraction is the basic way to prevent gas disasters.
瓦斯灾害严重影响我国煤矿生产的安全，瓦斯抽放是防止瓦斯灾害事故的根本途径。
In this paper, the basis, technical essentials, safety measures and practical effect using millisecond blasting technique at holing and blasting face of coal mines are introduced.
文中介绍了煤矿炮采工作面使用微差控制爆破技术的依据、技术要点、安全措施和实际效果。
Coal and gas outburst is one of the major disaster accidents in coal mines, which is a serious threat to the coal mine production safety.
煤与瓦斯突出是煤矿重大灾害事故之一，严重威胁着煤矿的安全生产。
In coal mines of China, the situation of the safety production was very austere, the accidents frequency was great and the economic losses were much.
我国的矿山企业，安全生产形势严峻，事故多、伤亡大、经济损失严重，尤其是重、特大事故频繁发生。
This paper analyses on the problems existing in the safety of production in coal mines currently and causes of these problems, and puts forward some corresponding countermeasures.
文章分析了当前煤矿安全生产存在的问题及其成因，提出了相应的解决对策。
Safety in production at coal mines is a task of primary importance.
安全生产是煤矿企业的头等大事。
Airtight structure is a very important facility in coal mines. It is of great significance to learn changes in parameters at sealed area timely and accurately for safety in production.
密闭是煤矿井下一道非常重要的设施，及时准确地掌握密闭内各参数的变化对安全生产有着重要的意义。
It was vital in both theory and practice to study how to control effectively safety risk in coal mines.
因此研究如何有效地控制煤矿安全风险具有十分重要的理论和现实意义。
Up to now, coal mines safety accidents happened frequently in china.
长期以来，我国煤矿事安全事故频繁发生。
Up to now, coal mines safety accidents happened frequently in china.
长期以来，我国煤矿事安全事故频繁发生。
应用推荐