working principe mine machines,Macro machines: The biggest and best mining machineryDec 20, 2011 . But modern mining machines need to have inbuilt intelligence as well as brute . and enhance work safety of underground mining processes.working principe mine machines,Notice to Underground Coal Mine Operators: Check Proximity .Apr 15, 2016 . MSHA is working with mine operators, manufacturers, and the National Institute . that miners are trained to follow safe work practices around mining equipment, . Training should reinforce the safety principle that, as with any.
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