buoyant rescue quoit

例句：

1. 1.The buoyant rescue quoit was designed to keep swimmers safe in the water.
   这个浮力救生圈是为了在水上保持游泳者的安全而设计的。
2. 2. The buoyant rescue quoit was used during the rescue operation to save the trapped person.
   在救援行动中使用了浮力救生圈来拯救被困的人。
3. 3. The buoyant rescue quoit was a critical piece of equipment for the survivalist community.
   浮力救生圈是生存主义者社区中至关重要的设备。