石油是一种重要的战略物质,有了它,船舰可以乘风破浪,汽车可以翻山越岭,飞机可以穿云透雾……可是随着经济、社会的快速发展,石油资源的消耗越来越快,日益面临着枯竭的危机。最近全球石油价格暴涨,正是反应了这种可怕的趋势。科学家们努力寻找能够代替石油的能源。煤炭,这种在 Oil is an important strategic material. With it, ships can ride wind and waves, cars can go over the mountains, and airplanes can wear fog through clouds... But with the rapid economic and social development, the consumption of petroleum resources is getting faster and faster. It is increasingly facing a crisis of depletion. The recent skyrocketing global oil prices reflects this terrible trend. Scientists are trying to find energy that can replace oil. Coal, this kind of