近年来，我国许多城市的大气质量日趋恶化，环境污染形势十分严峻，控制和治理大气污染，保持良好的生态环境事关我国未来经济与社会的持续发展。为此，国家关于实施“空气净化工程——清洁汽车行动”的若干意见中指出，“推广燃气汽车是当前降低汽车排放的重要途径”。此外，? In recent years, the air quality of many cities in our country has deteriorated day by day. The situation of environmental pollution is very grim. Controlling and controlling air pollution and maintaining a good ecological environment are all related to the sustained economic and social development of our country. To this end, the state on the implementation of “Air Purification Project - Clean Car Action” in a number of opinions pointed out that “the promotion of gas vehicles is an important way to reduce vehicle emissions.” In addition,?