 |
| |||
| directive coefficient | |||
| directivity | |||
| front-to-back ratio; space factor; gain (антенны) | |||
| directivity factor | |||
| directive gain; directional gain; directivity (антенны); directivity factor (источника звука); directive gain (антенны) | |||
| front-to-rear ratio | |||
| directional factor | |||
| directivity factor (микрофона); directivity index | |||
| directivity coefficient (излучателя) | |||
| коэффициент направленности: 15 phrases in 9 subjects |
| Antennas and waveguides | 2 |
| Electronics | 3 |
| Hydroacoustics | 2 |
| Mass media | 2 |
| Metallurgy | 1 |
| Nautical | 1 |
| Quantum electronics | 1 |
| Shipbuilding | 1 |
| Telecommunications | 2 |