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back-sight; backsight | |||
plus sight | |||
back angle | |||
back sight | |||
backsighting (1. measuring or reading back towards a point of known elevation, used to calculate the height of the surveying instrument [theodolite, transit, total station]; 2. measuring a previously-shot point, used to set the angle to zero when occupying a new position) | |||
backward sight; backward sighting | |||
back bearing | |||
reverse bearing | |||
back sighting |
обратное визирование: 5 phrases in 5 subjects |
Artillery | 1 |
Geophysics | 1 |
Military | 1 |
Oil / petroleum | 1 |
Oil and gas | 1 |