bubble monitor

例句：

1. 1. Thebubble monitor is used to detect the presenceof gases in the water.
   气泡监测器用于检测水中气体的存在。
2. 2. The bubble monitorwas designed to prevent accidents caused by gasleaks.
   气泡监测器被设计用来防止由于气体泄漏引起的事故。
3. 3. The bubble monitorcan be used to monitor the health ofthe environment.
   气泡监测器可以用来监测环境的健康状态。