[Improvement of work conditions in open-cut mining].
D003031:Coal; D004391:Dust; D004560:Electricity; D004781:Environmental Exposure; D006801:Humans; D009787:Occupational Medicine; D014586:USSR
D003031:Coal; D004391:Dust
Ob ozdorovlenii usloviĭ truda na otkrytykh gornykh razlovykh élektrostantsiiakh.