 |
| |||
| traverse (MichaelBurov); prospecting traverse (MichaelBurov); reconnaissance survey (MichaelBurov); reconnaissance traverse (MichaelBurov); traversing (MichaelBurov) | |||
| исхаживание: 4 短语, 1 学科 |
| 黄金开采 | 4 |
|
| |||
| traverse (MichaelBurov); prospecting traverse (MichaelBurov); reconnaissance survey (MichaelBurov); reconnaissance traverse (MichaelBurov); traversing (MichaelBurov) | |||
| исхаживание: 4 短语, 1 学科 |
| 黄金开采 | 4 |