loop body

例句：

1. 1. The loop body is a crucial part of the circuitry system.
   环状体是电路系统的关键部分。
2. 2. The loop body plays a vital role in the transmission of signals.
   环状体在信号传输中起着至关重要的作用。
3. 3. The loop body was designed to improve efficiency and reduce costs.
   环状体的设计旨在提高效率和降低成本。