It is of great significance for some of the mines using model LK-1 LHDs in our country to reduce their level of pollution.
改造LK——1型铲运机，以降低其污染水平，对我国某些使用这种设备的矿山具有重要的意义。
This report is concerning the operation performance, productivity, operating cost, existing problems and proposals for improvements of underground iron mine LHDs in China.
介绍了我国地下铁矿铲运机使用情况、出矿效率、成本、存在问题及改进意见。
This report is concerning the operation performance, productivity, operating cost, existing problems and proposals for improvements of underground iron mine LHDs in China.
介绍了我国地下铁矿铲运机使用情况、出矿效率、成本、存在问题及改进意见。
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