coreless armature

例句：

1. 1.The new design uses a coreless armature to improve efficiency.
   新设计使用无芯电枢来提高效率。
2. 2. The machine has a coreless armature that can handle heavy loads.
   这台机器有一个无芯电枢，可以处理重负载。
3. 3.The coreless armature is designed to reduce vibration and noise during operation.
   无芯电枢的设计旨在减少操作过程中的振动和噪音。