coal oil co-process

例句：

1. 1.The process of coal gasification is crucialfor reducing emissions from power plants.
   煤炭气化过程对于减少电厂的排放至关重要。
2. 2.The coal processing plant has been undergoinga major upgrade to improve efficiency.
   该煤炭加工厂正在进行重大升级，以提高效率。
3. 3. Theuse of coal gasification technology can significantlyreduce the environmental impact of coal mining.
   使用煤炭气化技术可以显著降低煤炭开采对环境的影响。