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21世纪被称之为“绿色世纪”,车用燃气作为一种清洁能源,价格与汽、柴油相比有竞争优势,开始在世界许多国家受到重视。
The 21st century is called “Green Century”. As a clean energy source, vehicle gas has a competitive advantage over gasoline and diesel and has been valued by many countries in the world.