അർത്ഥം : Surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments.
പര്യായപദങ്ങൾ : alidade
അർത്ഥം : Surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles.
പര്യായപദങ്ങൾ : alidade