遵照毛主席“开发矿业”的教导,为解决台车打眼夹钎的问题,我们三结合小组发扬了“自力更生,艰苦奋斗”的革命精神,因地制宜,经过半年的奋战,试制成功一台拔钎机,经过几个月井下生产试验,效果良好。设备结构简单,操作方便,动作灵活,深受现场工人的欢迎。一、功用梅山铁矿,采用无底柱分段崩落采矿方 In accordance with Chairman Mao’s “Development of Mining” teaching, in order to solve the problem of trolley brazing, we combined the three groups to carry forward the revolutionary spirit of “relying on one’s own efforts and working hard” to adapt to local conditions. After six months of hard work, After several months of underground production test, the effect is good. Equipment structure is simple, easy to operate, flexible action, welcomed by field workers. First, the function of Meishan iron ore, the use of non-pillar subsidence mining side