depth control device

例句：

1. 1. The depth control device is used to monitor the water level in the well.
   深度控制装置用于监测井中的水位。
2. 2. The engineer designed a depth control device that could detect and prevent earthquakes.
   工程师设计了一种可以检测和预防地震的深度控制装置。
3. 3. The depth control device was crucial for maintaining the stability of the foundation.
   深度控制装置对于保持地基的稳定性至关重要。