无石膏硅酸盐水泥
gypsum-free Portland cement
钾长石-石膏-石灰(石)热分解体系
K-feldspar-CaSO4-CaO thermal decomposition system
钾长石－石膏－石灰石热分解体系
K-feldspar-CaSO4-CaO thermal decomposition system
无水无灰煤
moisture and ash-free coal
moisture ash free coal
α半水石膏
alpha hemihydrate gypsum
hemihydrate plaster
calcium sulfate hemihydrates