branch tracer

例句：

1. 1. The branch tracerwas used to locate the lost hikersin the forest.
   分支追踪器被用来在森林中定位失踪的徒步旅行者。
2. 2.The branch tracer helped us to identifythe source of the leaky pipe.
   分支追踪器帮助我们确定了泄漏管道的来源。
3. 3. The branchtracer was a crucial tool for theinvestigation team to follow the trail of thecriminal.
   分支追踪器是调查团队追踪罪犯踪迹的关键工具。