自记水位计

例句：

1. 1. The self-recording water level indicator is very useful for monitoring the water level in a reservoir.
   这种自动记录水位的仪器对于水库中水位的监测非常有用。
2. 2. The self-recording water level indicator can provide accurate readings even when there is no human supervision.
   这种自动记录水位的仪器可以在没有人监督的情况下提供准确的读数。
3. 3. The self-recording water level indicator has become an essential tool for flood control and emergency response efforts.
   这种自动记录水位的仪器已经成为洪水控制和紧急响应工作的重要工具。