Definīcija:the non-agglomerating coals with a gross calorific value between 17,435 kJ/kg (4,165 kcal/kg) and 23,865 kJ/kg (5,700 kcal/kg) containing more than 31 per cent volatile matter on a dry mineral matter free basis
VVC izstrādātie sociālo jautājumu, socioloģijas un statistikas termini