polyphase

例句：

1. 1. The system is designed to operate in multiple phases simultaneously.
   该系统设计为同时在多个阶段运行。
2. 2.The research focused on the development of new materials with polyphase structures.
   该研究专注于开发具有多相结构的新型材料。
3. 3.The team successfully implemented a polyphase approach to improve efficiency.
   团队成功地实施了一种多相方法来提高效率。