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| fiducial mark; datum point (plural datum points) A point which serves as a reference or base for the measurement of other quantities. wikti Alexander Demidov) | |||
| standard for the position; standard position | |||
| reference point | |||
| точка начала отсчёта: 6 phrases in 6 subjects |
| Aerohydrodynamics | 1 |
| Automated equipment | 1 |
| Hydrography | 1 |
| Mass media | 1 |
| Military | 1 |
| Surveying | 1 |