 |
| |||
| net-to-gross sand ratio (Alexander Demidov) | |||
| net to gross (MichaelBurov) | |||
| net-to-gross ratio; sand fraction | |||
| net sand coefficient; gross sand ratio (dimock) | |||
| net sand (June Monthly Business Letter); net/gross ratio (NTG); NTG | |||
| коэффициент песчанистости: 4 do fraz, 3 tematyki |
| Geofizyka | 2 |
| Pola naftowe | 1 |
| Sachalin | 1 |