minor auxiliary circle

例句：

1. 1. The minorauxiliary circle is responsible for thecoordination of the main engine's performance.
   次要辅助圆负责协调主要引擎的性能。
2. 2. Inaerodynamics, the minorauxiliary circle plays a crucial rolein determining the stability of an aircraft.
   在空气动力学中，次要辅助圆在确定飞机稳定性方面起着至关重要的作用。
3. 3. The minorauxiliary circle was designed toimprove the efficiency of the powertrain system.
   次要辅助圆的设计旨在提高动力传动系统的效率。