secondary flow afterburning

例句：

1. 1. The secondary flow afterburning processis crucial for the efficiency of the engine.
   二次燃烧后流过程对于发动机的效率至关重要。
2. 2.During the post-burning phase,the exhaust gases are cooled andcleaned before being released into the atmosphere.
   在后燃烧阶段，废气在排放到大气之前会被冷却和净化。
3. 3. The use ofsecondary combustion technology can significantly reduceemissions and improve fuel efficiency.
   使用二次燃烧技术可以显著减少排放并提高燃油效率。