retaining ring bar

例句：

1. 1. The retaining ring bar is crucial for the stability of the structure.
   保持环带对于结构的稳定性至关重要。
2. 2.The engineer used a retaining ring bar to support the heavy load.
   工程师使用一个保持环带来支撑重载。
3. 3.The retaining ring bar was designed to prevent the structure from moving during earthquakes.
   保持环带的设计是为了在地震期间防止结构移动。