| |||
| опробование по канавам (MichaelBurov) | |||
|
trench sampling , sampling over trenches : 3 phrases in 1 subject |
| Gold mining | 3 |
| |||
| опробование по канавам (MichaelBurov) | |||
|
trench sampling , sampling over trenches : 3 phrases in 1 subject |
| Gold mining | 3 |