Eyepiece parallel to
20.05.2020 | Категория: Обустройство участка
The observer sets the anti-aircraft type to the operating position at the point under the open opening, then by the rotation of the visual pipe of the device sets the horizontally visible thread of the eyepiece parallel to the lines of one of the shirts of the visitor, it takes the counts at two positions of the horizontal circle, which differ by 180 °, and records them In the magazine of measurements.