reverse polarity armature

例句：

1. 1. The new design ofthe car has a reverse polarity armature that is more energy-efficient.
   这款汽车的新设计采用了更节能的反向极性电机。
2. 2. The robot's armature is made of high-strength steel to withstand heavy loads.
   机器人的电枢由高强度钢材制成，以承受重负载。
3. 3. The engineers designedthe armature with a unique shape toimprove efficiency.
   工程师们设计了具有独特形状的电枢以提高效率。