1. a gauge for measuring the height of water in the Nile especially during its flood specifically a graduated scale cut on a natural rock or in the stone wall of a pit communicating with the river
Nilometer 例句
英汉例句
This is the famous Nilometer by which water levels in the River Nilo were noted.
这就是着名的尼罗河仪。用它测星尼罗河的水位。
This instrument, called a Nilometer was used by the ancient Pharaohs to establish how high the periodic floods would be.