 |
| |||
| threshold of visual sensation; visual threshold; achromatic threshold | |||
| зрительный порог: 17 phrases in 8 subjects |
| Aviation | 2 |
| Aviation medicine | 2 |
| Makarov | 2 |
| Mass media | 3 |
| Medical | 4 |
| Quantum electronics | 1 |
| Security systems | 1 |
| Technology | 2 |
|
| |||
| threshold of visual sensation; visual threshold; achromatic threshold | |||
| зрительный порог: 17 phrases in 8 subjects |
| Aviation | 2 |
| Aviation medicine | 2 |
| Makarov | 2 |
| Mass media | 3 |
| Medical | 4 |
| Quantum electronics | 1 |
| Security systems | 1 |
| Technology | 2 |