A coal mining in thin seam is an inevitable issue of coal mining in many coal mines.
薄煤层开采是许多矿井煤炭开采中不可避免的问题。
The paper briefly introduced storage of thin seam coal resources in China as well as several type of mining equipment.
文章简要介绍中国薄煤层煤炭资源的储存情况、薄煤层开采机械的几种类型。
Within the north structure block, with the influence of the thin seam thickness, the thickness of the structure coal seam was relevantly thin.
在北部构造区内受煤层厚度较薄的影响，构造煤厚度相对较薄。
The paper introduced the development, design and structure of the thin seam coal shearer with an electric magnetic sliding differential speed control in detail.
详细介绍了电磁滑差调速薄煤层采煤机的开发设计思路、结构特点；
Combining with the actual situation in coal face, expound the key technology for large inclined Angle thin seam face so as to assure that slided coal can't come in goaf.
结合某矿采煤工作面实际情况，阐述了大倾角薄煤层工作面的关键技术处理措施，保证了煤下滑不窜入采空区。
The entry arrangement, actual mining process and side entry support of advanced mining at thin seam are introduced. The safe measures are made and has made good economic benefit.
介绍了薄煤层前进式采煤的巷道布置、回采工艺及巷旁支护等，制定了切实可行的安全措施，取得了较好的经济效益。
Through analysing the parameter, construction, designing principle of MG150PW extremum thin seam coal winning machine. This paper discusses its developing vista in extremum thin seam mining.
通过对MG 150pw极薄煤层采煤机的参数、结构设计原理进行分析，论述在极薄煤层开采中的发展前景。
This paper introduces state of mining and reserving of thin and almost thin seam, analyses technology and methods of mining thin seam, meanwhile discusses design of hydraulic support in thin seam.
介绍了我国薄、极薄煤层赋存及开采状况，分析了薄煤层开采的技术及方法，并对薄煤层液压支架的设计进行浅探。
Based on an example from Datong Coalmines Group, the paper analyses possibility and usage of heavy plow under the conditions of thin seam coal face with Two Hard Roofs and gives out some proposals.
介绍了新型刨煤机的主要性能和结构特点以及使用条件，结合晋城矿区煤层赋存条件，论证了刨煤机在晋城矿区使用能大幅度地提高综采工作面煤炭块率。
Therefore, the conventional staggered distance model of ultra-close thin coal seam group during combined mining is put forward; and the theoretical research and physical simulation are carried out.
因此提出极近距离薄煤层群联合开采常规错距开采模型，并进行理论和物理模拟试验研究。
Reasonable down from feeding mechanism to ensure that does not wrinkle when sewing thin, continuous line when the seam thickness.
合理的倒、顺送料机构确保缝薄时不起绉，缝厚时不断线。
Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.
在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。
The roadway manage, actual mining and support beside roadway in thin coal seam are introduced. Through planing reliable safety technology measures, better economic benefit has been achieved.
简要地介绍了薄煤层前进采煤的巷道布置、回采工艺及巷旁支护等，制定了切实可行的安全技术措施，取得较好的经济效益。
The paper makes an introduction to the shape rolling mechanism on welding pipes with the thin wall and straight seam, with an associated and theoretical analysis presented as well.
介绍了直缝薄壁辊式成型的机理，并对其进行理论分析。
Through the way of numerical simulation and locale measurement, we found the safety utmost bedrock ply at the condition of thin bedrock and thick coal seam in Sima coal Mine.
通过数值模拟和现场实测的方法，研究了司马矿薄基岩厚煤层开采条件下，保证安全开采的极限基岩厚度。
The technology of coal plough have been applied in the exploitation of medium-sized and thin coal seam through analysing and comparing the characteristic of cylinder mining machine and coal plough.
对比分析了滚筒采煤机与刨煤机的特性，并将刨煤机开采技术运用于中等及薄煤层的开采中，提高了煤炭生产效率，实现了工作面采煤的全部自动化，具有广泛的推广和应用价值。
Burn through is the main problem of longitudinal seam welding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
小直径超薄壁管纵缝焊接的主要问题是烧穿，解决这个问题的关键是严格控制焊接接头的装配质量及焊接工艺。
The technics of adding face for plow face is introduced. The better solution way to reasonable mining coal resource is provided. The particularity of equipments for thin coal seam is expounded.
对刨煤机工作面加面工艺进行了系统介绍，对合理的煤炭资源开采提供了更好的解决办法，并针对薄煤层开采设备特殊性作了细致的阐述。
According to elastic theory, this paper gives quantitative answers of stresses and deformations caused by the lateral contraction of longitudinal welding seam on the thin wall's cylinder.
利用弹性理论。给出了薄壁圆筒纵向焊缝的横向收缩引起的应力与变形的定量解答。
The results suggest that if Cu layer is too thin, the eutectic substance created from eutectic reaction is little, it can not fill the seam and the areas of joints are empty;
结果表明：铜层过薄，共晶反应生成的液相量太少，未能填满缝隙，接头有空洞出现；
Dry leakage part, in thin leaks immediately sprinkle a layer of dry cement, appearance of wet points or lines is leaking holes or seam.
漏水部位擦干，立刻在漏水处薄薄地撒上一层干水泥，外表呈现的湿点或湿线处就是漏水的孔或缝。
The thin cylinder of upper roller can be adjusted according to your thin & thick fabrics, in order to protect materials and solve the problems of sealing straight of seam kind seam sealing machine.
上压轮气缸采用超薄可调节气缸，可对用户加工厚薄布料进行压力调节，防止压坏布料和压出布边有痕迹，解决了同类机器直压到底的缺陷。
The thin cylinder of upper roller can be adjusted according to your thin & thick fabrics, in order to protect materials and solve the problems of sealing straight of seam kind seam sealing machine.
上压轮气缸采用超薄可调节气缸，可对用户加工厚薄布料进行压力调节，防止压坏布料和压出布边有痕迹，解决了同类机器直压到底的缺陷。
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