福兮锅所倚，祸兮福所藏。曾几何时，燃气叩开我国城乡居民的大门，以其省时、省力、使用方便，污染小等优点，很快受到了人们的青睐。据调查资料表明：1993年2月，我国城市用气人口已超过7500万，约占我国城市非农业人口的50％。1984年底，南京市民家庭使用燃气的用户已高达92 The well-being pot is leaning against the blessings. Once upon a time, gas opened up the door of urban and rural residents in China. With its advantages of being time-saving, labor-saving, easy to use, and less polluting, it quickly gained people’s favor. According to the survey data, in February 1993, China’s urban gas use population had exceeded 75 million, accounting for approximately 50% of the non-agricultural population of the city. By the end of 1984, the number of users of Nanjing’s households using gas had reached 92