In a trunked system, the switching station is known as the central controller. 在集群系统中，交换站通常被作为中央控制器。
This ability to combine multiple departments or agencies under one system while maintaining independent operations is the cornerstone of the trunking advantage. 这种在单一系统中融合多个部门或机构，同时保持其独立运作的能力就是集群系统优势的基石。
Typical examples are the flows in the T-junction and the pressurizer in the cooling system of Pressurized Water Reactor. 典型的例子如在压水反应堆核电厂主系统中的三通构件以及稳压器内的波动接管等构件中，射流与主流具有很大的温差，这就会造成在非连续的射流与主流的混合过程中，构件承受着巨大的热冲击，有可能使构件产生热疲劳破坏。
