parachute beacon

例句：

1. 1. The parachute beacon was used to guide the pilot during a critical landing.
   降落伞信号灯在飞行员着陆过程中用于引导。
2. 2. The military used parachute beacons to communicate with each other in the field.
   军队使用降落伞信标在野外互相通信。
3. 3. The search and rescue team used parachute beacons to locate the lost hikers.
   搜救队使用降落伞信标来定位失踪的徒步旅行者。