沃尔沃集团最近生产了7辆不会对环境排放任何二氧化碳的示范车。8月29日在斯德哥尔摩首次展出的这批车,装配了经过特殊改良的沃尔沃9L发动机,该发动机可以使用7种可再生的液态和气态燃料。然而,据沃尔沃方面说,目前各种可再生燃料的供应还很有限,能够在二氧化碳零排放的运 Volvo Group recently produced seven demonstration vehicles that will not emit any carbon dioxide to the environment. The cars, debuted at Stockholm on August 29, are equipped with a specially modified Volvo 9L engine that uses seven renewable liquid and gaseous fuels. However, according to Volvo, at present, the supply of various renewable fuels is still very limited and can be used in the zero-carbon dioxide emissions