[Energy expenditure of workers engaged at certain working sites in coal mines].
D002151:Calorimetry; D003032:Coal Mining; D006801:Humans; D006813:Humidity; D009787:Occupational Medicine; D005082:Physical Exertion; D013696:Temperature; D014937:Work
Wydatek kaloryczny pracowników na niektórych stanowiskach pracy w kopalniach wegla kamiennego.