分析了矿用电机车的牵引力与制动力，指出各种矿山运输教材中机车章的错误。
The paper analyzes the haulage force of mine locomotive and its brake force, and points out some errors in various text books on portation mine transportation.
适用于微细粒级黑色、有色及贵重稀有金属矿物的分选回收，也可用于各种矿山尾矿中微细金属矿的回收。
Apply to the microgranular level black, non-ferrous and precious rare metal mineral separation recycling, also can be used for all kinds of mine tailings of deposits in the recovery of the fine.
所建立的采场可靠性模糊综合评价模式，不仅适用于非煤矿山采场，而且适用于各种类型的矿山采场。
The mode for evaluating stope reliability built here can not only be used for the stopes of non-coal mines, but also for all sorts of mines.
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