铁矿井 meaning in Chinese

iron pit

Study on arterial compliance of ore miners
铁矿井下作业人员动脉顺应性研究
The directional breaking blasting technology for underground development used in xishimen iron mine is described . a comprehensive summary is made of it which includes the test technology , the blasting parameters and the on - site application effect so as to provide precious experiences for other mines
论述了西石门铁矿井下掘进定向断裂爆破技术，对其试验工艺、爆破参数、现场应用效果等方面进行了全面总结，为其它矿山井下掘进提供了宝贵经验。