double combustion chamber

例句：

1. 1. The engine has a double combustion chamber to improve efficiency.
   这款发动机有一个双燃烧室，以提高效率。
2. 2. Thenew model car features a double combustion chamber for better performance.
   新款汽车配备了一个双燃烧室，以获得更好的性能。
3. 3. The double combustion chamber isdesigned to reduce emissions and improve fuel efficiency.
   双燃烧室的设计旨在减少排放并提高燃油效率。