water gauge lamp

例句：

1. 1.The water gauge lamp is used to measure the level of water in a tank.
   水表灯用于测量水箱中的水位。
2. 2. The water gauge lamp was installed to ensure proper water usage.
   安装水表灯是为了确保正确的用水。
3. 3.The water gauge lamp is an essential tool for maintaining proper water levels in a system.
   水表灯是维护系统适当水位的必备工具。