This paper analyzed the problems of the belt deviation for belt conveyor of the underground coal-mining, and summarized the corrective method for preventing the belt deviation of the belt conveyor.
针对煤矿井下胶带输送机胶带跑偏问题进行了分析，总结出了输送机胶带防止跑偏的防治方法，对胶带输送机在现场的使用和维护具有一定的实用价值。
The paper presents uniform method of evaluation mining geological and technological conditions for application of rock bolting in Polish underground coal mines.
针对波兰煤矿地下开采中的锚杆支护应用实践，提出了统一的采矿地质和技术条件的评价方法。
This paper introduces the design method for a kind of the explosion-division intelligent electromagnetic starter specially used in the fans of the underground coal mining district.
介绍了一种煤矿井下对旋式风机专用隔爆型电磁启动器的设计方法。
应用推荐