面对世界有些国家石油能源紧缺和燃油汽车对城市空气污染日益严重的问题，人们正在努力研制无污染的汽车，并为汽车开创了“新的食谱”：“吃气”汽车：液化气不仅是一种家用燃料，而且，越来越广泛地被运用到汽车上。液化气有三大优点：燃料价格低（仅为汽油价格的４０％）； In the face of the shortage of oil energy in some countries in the world and the increasingly serious problem of air pollution caused by fuel vehicles in the cities, people are trying hard to develop pollution-free vehicles and create “new recipes” for cars: “Eat” Cars: LPG is not only A domestic fuel, moreover, is being applied more and more to cars. Liquefied petroleum gas has three major advantages: low fuel prices (only 40% of gasoline prices);