track occupancy lamp

例句：

1. 1.We need to track the location of the lost device.
   我们需要追踪丢失设备的地点。
2. 2. The track occupancy lamp is used to monitor the movement of people in a room.
   追踪占用灯用于监控房间内人员的运动。
3. 3. The track occupancy lamp helps to prevent accidents by alerting us when someone enters or leaves a room.
   追踪占用灯通过提醒我们当有人进入或离开房间时，帮助我们预防事故。