Hydrogen energy is one of important secondary energy sources in 21st century.
氢能将是21世纪重要的二次能源。
The process of coal changing into electricity is the process of making fuel fossil into cleanly secondary energy sources.
煤电转化过程是将化石燃料煤转化为洁净的二次能源电的过程。
The process of coal changing into electricity is the process of making fuel fossil into cleanly secondary energy sources.
二甲醚是一种理想的洁净燃料和气雾剂推进剂，是煤炭转化的新方向。
应用推荐