Two models for output of mechanized coal face are constructed with Markovian theory.
利用马尔可夫理论，构造了两个机采工作面产量的模拟模型。
The safe monitoring system on the coal face is the nerve of safe production in coal mine.
综采工作面的安全监测系统是煤矿生产的神经系统。
Duct monitoring system is an effective means to predict the trends of spontaneous combustion in coal face.
束管监测系统是预报采煤工作面自然发火趋势的有效手段。
The in-situ practices show that most rock bursts occur in the front abutment scope ahead of the coal face.
现场实践表明，大多数冲击地压发生在工作面煤壁前方超前支承压力范围内。
The safe production in coal face is directly influenced by the low pressure sealing quality of hydraulic props.
单体液压支柱低压密封质量，直接影响到工作面安全生产。
The field investigations show that ground pressure of coal face with high productivity depends on face advance rate.
通过现场实测，得出了对浅埋煤层高产高效工作面顶板来压特征和不同推进速度的矿压显现规律。
Analyzing the accident of the type and reason in blast mining top-coal face, and preventative measures are provided.
分析了炮采工作面顶板事故的类型及产生原因，提出了预防措施。
The practices prove that the presented technology can assure the safety and high production efficiency of the coal face.
实践证明，这套技术安全、可靠、有效，能够保证在工作面进行高效生产。
Why lose a hard-working 25-year-old for a couple of years when you can train him internally and keep him at the coal face?
为什么要让一个积极进取的、25岁的年轻人浪费几年的光阴（去读MBA)？ 而在此期间通过内部培训将使其显露才干。
Based on several typical examples of gas explosion occurred at coal face, the basic events of gas explosion are summarized.
根据矿井采煤面瓦斯爆炸的一些典型事例，概括出了导致瓦斯爆炸的基本事件。
This research will benefit a deeper understanding of buried coal face planninf and mining in karstic collapse column region.
本文成果对采煤工作面合理布置具有指导意义，有助于岩溶陷落柱研究的进一步深化。
The barycentric coordinates of the plane view projection of a coal face are solved with a formula of geometric gravity centre.
利用平面图形几何重心公式计算回采工作面水平投影图形的重心坐标，然后根据影响传播角和开采深度计算下沉盆地中心位置的坐标。
Scraper conveyor of reliable, stable and efficient operation will directly affect the productivity and efficiency of coal face.
刮 板输送机的可靠、稳定、高效运行将直接影响着采煤工作面的生产能力和效率。
In the coal face, tubing length of 1000 meters, up to more than 4000 joint socket, the tank without a special dust-proof facilities.
在采煤工作面，油管总长1000多米，接头插口多达4000多个，液箱无特殊的防尘设施。
The heart rate and energy metabolism rate of shearer operators and prop-setters during labour at coal face are measured at work site.
对机械化采煤工作面的采煤机司机和支柱工的劳动心率和能量代谢进行了现场实测。
Precisely predicting the amount of gas emitted from the coal face is of great importance in the design of mine and production safety.
正确预测瓦斯涌出量，对于指导矿井设计和安全生产有重要意义。
Now the sensor has been successfully used to monitor the working condition of supports at fully mechanized coal face with good results.
目前该传感器已成功地用于综采支架工况监测，使用效果良好。
This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face.
本文介绍了综采工作面回采超高时倾斜歪倒支架调整的方法及措施。
The practices prove that the technology which can assure the safety and high effective product of the coal face is safe, secure and effective.
实践证明，这套技术安全、可靠、有效，能够保证工作面的安全高效生产。
This article is important and has practical significance in putting forward the study about forecasting dangerousness of full mechined coal face.
本文的研究对于进一步推动综采面煤的突然压出危险性预测技术的研究具有重要的科学价值和实际意义。
Automatic lifting of shearer drum is one of key techniques of coal face automation, and its core is identification technique of coal and rock interface.
滚筒自动调高是实现采煤工作面自动化的关键技术之一，其核心是煤岩分界识别技术。
Coal face of the gushing water, the solid particles with the recovery cycle of the content of the changes in content homework change, which is cyclical.
采煤工作面的涌水中，固体颗粒的含量随着回采循环作业内容的改变而变化，因而，具有周期性。
In this paper, the methane emitted from three sources, i. e. from the goaf, the coal face and the broken coal, into a mechanized longwall face is analyzed.
本文对综合机械化采煤工作面的三种沼气源的涌出进行了分析。
Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important.
随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。
It is pointed out that the methane emitted from the goaf and the coal face may be approximately taken as constants, but that from broken coal is a function of time.
作者指出，采空区和煤壁上的沼气涌出可以近似地作为常量，采落煤炭的沼气涌出则是时间的函数。
The writers, using the theory and method of Management Information systems (MIS), designed and realized a MIS of production facilies in a fully mechanized coal face.
运用管理信息系统的理论、方法，设计并实现综采工作面生产设备管理信息系统。
The fast loading technology with the support loading station is successfully applied in the support withdrawing at the fully mechanized coal face in Xinyao Coal Mine.
新窑煤矿在综采工作面支架回撤中成功应用支架装车站快速装车技术，解决了综采工作面搬迁中支架装车速度慢、安全隐患多的问题。
When using compressed air to supply coal evenly, the layout space and quantity of delivery equipment will have a direct influence upon the cooling result in coal face.
采用压缩空气均匀供冷降温的采煤工作面，送风器的布置间距和数量直接影响着采煤工作面的降温效果。
It is important to ascertain geological condition in a coal face or a mine area before mining, so as to secure a high output and high profit mine in safety production.
采前查明采区或采煤工作面的地质条件是保障高产高效矿井安全生产的重要基础。
It is important to ascertain geological condition in a coal face or a mine area before mining, so as to secure a high output and high profit mine in safety production.
采前查明采区或采煤工作面的地质条件是保障高产高效矿井安全生产的重要基础。
应用推荐