 |
| |||
| threshold | |||
| threshold (energy; the minimum input energy needed to cause laser action) | |||
| energy barrier; energy threshold | |||
| threshold energy | |||
| Schwellenenergie: 13 phrases in 6 subjects |
| Earth sciences | 3 |
| Electronics | 1 |
| Nuclear physics | 1 |
| Optics branch of physics | 1 |
| Physics | 2 |
| Радиоактивное излучение | 5 |