共 50 条
- [22] EFFECT OF PORE CONTENTS ON PROPERTIES OF HARD COAL. Coke & Chemistry (USSR) (English translation of Koks i Khimiya), 1985, (04): : 15 - 18
- [23] On the formation of layers of stipite, hard brown coal and brown coal. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES, 1900, 130 : 1687 - 1690
- [24] BOWL MILL CRUSHERS FOR PULVERIZING HARD COAL. Ball and Roller Bearing Engineering, 1980, 19 (02): : 16 - 18