aural-null
| direction finding
| aural null | |
| earth.sc. | akustisches Minimum |
| direction finding | |
| gen. | Funkortung; Funkpeilung |
| opt. | Ortung |
| phys. | Peilung |
| tech. | Funkpeilung; Ortungsverfahren; Standortsbestimmung |
| |||
| akustisches Minimum | |||
| Hoerminimum n (Peilung); Radiostille f; akustisches Minimum (Peilung) | |||
|
aural-null : 5 phrases in 3 subjects |
| Earth sciences | 2 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 2 |