ram engine

例句：

1. 1. The ram engine is responsible for the vehicle's acceleration.
   这个发动机负责车辆的加速。
2. 2. The engineers worked tirelessly to develop a new ram engine.
   工程师们努力工作，开发了一种新型的引擎。
3. 3. The ram engine is the heart of the aircraft, providing power and propulsion.
   引擎是飞机的核心，提供动力和推进。