 |
| |||
| plane-table intersection; topographic drawing board cross bearing | |||
| |||
| graphic control survey | |||
| мензульная засечка: 1 短语, 1 学科 |
| 地球物理学 | 1 |
|
| |||
| plane-table intersection; topographic drawing board cross bearing | |||
| |||
| graphic control survey | |||
| мензульная засечка: 1 短语, 1 学科 |
| 地球物理学 | 1 |