tubular float level indicator

例句：

1. 1. The engineer used a tubular float level indicator to check the water level in the tank.
   工程师使用了一个管状浮子液位指示器来检查水箱中的水位。
2. 2. The manufacturer recommends using a tubular float level indicator for accurate readings.
   制造商推荐使用管状浮子液位指示器进行准确的读数。
3. 3.The technician inspected the tubular float level indicator and confirmed its functionality.
   技术员检查了管状浮子液位指示器，并确认了其功能正常。