urban gas supply system

例句：

1. 1.The urban gas supply system is a crucial part of our daily life.
   城市燃气供应系统是我们日常生活的重要组成部分。
2. 2. The city's urban gas supply system has been upgraded to meet the needs of the growing population.
   城市的燃气供应系统已经升级，以满足不断增长的人口需求。
3. 3.The urban gas supply system plays a vital role in ensuring the safety and efficiency of the city's energy supply.
   城市燃气供应系统在确保城市能源供应的安全性和效率方面发挥着至关重要的作用。