retaining ring bolt

例句：

1. 1.The engineer used a retaining ring bolt to secure the concrete foundation.
   工程师使用一个保持环螺栓来固定混凝土基础。
2. 2. The construction crew used retaining ring bolts to stabilize the slope.
   建筑工人使用保持环螺栓来稳定斜坡。
3. 3. The engineer installed a retaining ring bolt to prevent the structure from shifting during heavy rain.
   工程师安装了一个保持环螺栓以防止结构在大雨中移位。