港口大型煤堆场 Large Coal Yard of Port
粉煤灰堆场 coal ash site
煤矸石堆场 Gangue stacking
7种煤煤质 coal quality of seven coal samples
采煤场 coal face
储煤场 stockyard
传统条形煤场 conventional oblong coal yard
堆煤自预压 self-preloading
方形全封闭煤场 totally enclosed quadrate coal yard
废煤堆 culm and gob banks
封闭式圆形煤场 the enclosed circular coal yard
锅炉房煤场 coal yard of boiler house
褐煤煤焦 lignite char
褐煤煤气 lignite gas
井筒与工业广场煤柱 Shaft and Industry Square Pillar
垃圾场煤气 landfill gas
垃圾场煤气发动机简图 landfill engine schematic
炼焦煤煤泥 coking coal slime
露天煤场 Open-pit Coal