sonic locator

例句：

1. 1. The sonic locator was used to locate the lost dog.
   声波定位器被用来找到丢失的狗。
2. 2. The sonic locator is a device that uses sound waves to find objects.
   声波定位器是一种利用声波来寻找物体的设备。
3. 3. The sonic locator can be used to detect underground pipelines.
   声波定位器可以用来探测地下管道。