[ESTIMATION OF THE DUST LEVELS IN PIT COAL MINES WITH ANALYTICAL FILTERS MADE OF ORGANIC MICROFIBERS].
D003031:Coal; D003032:Coal Mining; D004391:Dust; D005374:Filtration; D012044:Regression Analysis
D003031:Coal; D004391:Dust
COAL MINING; DUST; FILTRATION
STANOVEN'I PRA SNOSTI ANALYTICK'YMI FILTRY Z ORGANICK'YCH MIKROVL'AKEN V  CERNOUHELN'YCH DOLECH.