日本将启动一项开发利用重质残油制造柴油、汽油等燃料的计划，以有效地利用能源并减轻污染。 　　所谓重质残油，是指从原油中提炼出汽油和煤油等后的残渣，也叫重质原油，过去都用来制作沥青、发电燃料及工业原料等。日本计划开发的新技术是要用它作原料，制造汽油、柴油、煤 Japan will launch a plan to develop fuels such as diesel and gasoline using heavy residues to effectively utilize energy and reduce pollution. The so-called heavy residual oil, refers to the extraction of crude oil from gasoline and kerosene after the residue, also known as heavy crude oil used to make asphalt, power generation fuel and industrial raw materials. Japan plans to develop new technology is to use it as raw materials, manufacturing gasoline, diesel, coal