The paper discusses the employment situation of big excavator in domestic mine, big excavator in Benxi Steel Nanfen opencast mine is made for example to illustrate its action in mine production.
主要讨论了大型挖掘机在我国矿山上的使用情况，以本钢南芬露天矿的大型挖掘机为例说明其在矿山生产中发挥的作用。
The paper discusses the employment situation of big excavator in domestic mine, big excavator in Benxi Steel Nanfen opencast mine is made for example to illustrate its action in mine production.
主要讨论了大型挖掘机在我国矿山上的使用情况，以本钢南芬露天矿的大型挖掘机为例说明其在矿山生产中发挥的作用。
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