 |
| |||
| directivity index (выраженный в дб) | |||
| front-to-back ratio; space factor; directivity; gain (антенны) | |||
| directive coefficient | |||
| directivity factor | |||
| directive gain; directional gain; directivity (антенны); directivity factor (источника звука); directive gain (антенны) | |||
| front-to-rear ratio | |||
| directional factor | |||
| rear-to-front ratio | |||
| directivity factor (микрофона); directivity index | |||
| directivity coefficient (излучателя) | |||
|
коэффициент направленности : 24 phrases, 10 sujets |
| Acoustique | 9 |
| Antennes et guides d'ondes | 2 |
| Construction navale | 1 |
| Électronique | 3 |
| Electronique quantique | 1 |
| Hydroacoustique | 2 |
| Médias de masse | 2 |
| Métallurgie | 1 |
| Nautique | 1 |
| Télécommunications | 2 |