名词
中文翻译：双循环
同义词：
['double circulation', 'dual circulation system']
例句：
-
1. The new model car has a dual circulation system that improves fuel efficiency.
这款新型汽车配备了双循环系统，提高了燃油效率。
-
2. In the dual circulation system, the air is circulated in two separate paths.
在双循环系统中，空气在两条独立的路径中循环。
-
3. The engineer designed the dual circulation system to optimize the cooling process.
工程师设计了双循环系统，以优化冷却过程。