coalbinn.煤箱coaln.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤coal mine waste area煤矿废弃地coal level detection煤位检测coal control pattern控煤模式coal or gas outburst煤与瓦斯突出coal selection plant选煤厂Coal mine subsidence采煤塌陷地coal capital control煤帮控制coal mine automation煤矿自动化coal rock reservoirs煤岩储集层Coal tar preparation煤焦油制剂