levelling instrument वाक्य

This includes aneroid barometer or preferably with a levelling instrument mounted on a tripod.
Levelling instruments again are used to obtain geopotential differences between points on the Earth's surface.
Common levelling instruments include the spirit level, the dumpy level, the digital level, and the laser level.
"' Levelling "'is the measurement of geodetic height using an optical levelling instrument and a level staff or rod having a numbered scale.