natural gas with high carbon dioxide

例句：

1. 1.The natural gas pipeline is under construction in the city.
   这个天然气管道正在城市里建设。
2. 2.The company uses natural gas to power its factories.
   这家公司使用天然气来为其工厂供电。
3. 3.Natural gas is a cleaner alternative to coal and oil.
   天然气是煤炭和石油的更清洁的替代品。