| 释义 |
气煤qìméi烟煤的一种,隔绝空气加热可产生大量煤气,有的气煤还可用来炼油和提取化工原料。单独用这种煤炼的焦强度低,块小,所以多用来和其他烟煤配合炼焦。{gas coal; a type of bituminous coal that produces large amount of gas when heated airtight and that can also be used to refine oil or extract chemical materials, oft. used together with other types of bituminous coal for coking because if it used alone for this purpose the coke produced tends to be of a low intensity and in small lumps} |