non-petroleum sources

例句：

1. 1. The company's main source of revenue is from its online advertising platform.
   该公司的主要收入来源是其在线广告平台。
2. 2.The new project will use renewable energy as a non-petroleum source of power.
   新项目将使用可再生能源作为非石油能源。
3. 3. The government has been promoting the development of non-petroleum sources of energy to reduce dependence on fossil fuels.
   政府一直在推动发展非石油能源，以减少对化石燃料的依赖。