The mining minister in Chile says all is going well in the efforts to bring to the surface 33 miners who have been trapped deep underground for more than two months.
智利矿务部长表示，拯救33名被困矿工的工作进展顺利。这33名矿工已经在地面以下深处被困了超过两个月的时间。
It can be used for reference for the import and remoulding of supporting equipments of deep well mining of narrow and gentle dip vein.
这对我国缓倾斜薄矿脉的矿山深井开采支护设备的引进和改造，将有一定的参考借鉴作用。
This paper introduces the application of soft starter in deep-sea mining systems, as well as deep-sea mining trucks working environment, load characteristics and selection, etc.
文中介绍了软启动器在深海采矿系统的应用，以及深海采矿车的工作环境、负载特点、和选型等。
This paper introduces the application of soft starter in deep-sea mining systems, as well as deep-sea mining trucks working environment, load characteristics and selection, etc.
文中介绍了软启动器在深海采矿系统的应用，以及深海采矿车的工作环境、负载特点、和选型等。
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