 |
| |||
| production test; performance test | |||
| efficiency test | |||
| productivity test (скважины) | |||
| |||
| efficacy trials (сельскохозяйственных культур Ivan Pisarev) | |||
| productivity test (скважины) | |||
| испытание на продуктивность: 6 phrases in 4 subjects |
| Agriculture | 2 |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Sakhalin | 1 |