semi-group system的用法和樣例：
例句
- In a trunked system, the switching station is known as the central controller.
在集群系統中，交換站通常被作為中央控制器。 - This ability to combine multiple departments or agencies under one system while maintaining independent operations is the cornerstone of the trunking advantage.
這種在單一系統中融合多個(gè)部門(mén)或機構，同時(shí)保持其獨立運作的能力就是集群系統優(yōu)勢的基石。
