ring busbar

例句：

1. 1.The ring busbar is used to connect the power supply and the load.
   环形母线用于连接电源和负载。
2. 2. The ring busbar is an important component of the electrical system.
   环形母线是电力系统的一个重要组成部分。
3. 3.The ring busbar is designed to distribute the electrical energy evenly across the circuit.
   环形母线设计用来在电路中均匀分布电能。