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чёрная отметка
| оси
| чёрная отметка | |
| construct. | centre-line ground elevation; existing relief elevation; grade |
| obs. | original ground level |
| oil | ground level |
| ОСИ | |
| mil. avia. | bench firing test |
| оси | |
| seism. | axes |
| ось | |
| Makarov. | axle shaft |
| ось a | |
| Makarov. | a axis |
| |||
| centre-line ground elevation; existing relief elevation (надписывается в нижнем правом углу квадрата alexkang); grade | |||
| original ground level | |||
| ground level (Seregaboss) | |||
| ground elevation | |||
|
чёрная отметка : 2 phrases in 2 subjects |
| Military | 1 |
| Road works | 1 |