main power jet

例句：

1. 1.The main power jet is the heart of the aircraft, providing the necessary thrust to take off and fly.
   主发动机喷气式飞机是飞机的心脏，提供必要的推力使飞机起飞和飞行。
2. 2.In this model, the main power jet is located in the center of the aircraft, providing a powerful boost for high-altitude flight.
   在这个模型中，主发动机喷气式位于飞机中心，为高空飞行提供强大的动力。
3. 3. The main power jet is responsible for generating the aircraft's lift, allowing it to reach great heights and distances.
   主发动机喷气式负责产生飞机的升力，使其能够达到很高的高度和距离。