 |
| |||
| radiating aperture of an antenna | |||
| aperture of a facsimile transmitter; aperture of a photo-receiver; aperture | |||
| apertur: 23 phrases in 7 subjects |
| Antennas and waveguides | 2 |
| Communications | 1 |
| Earth sciences | 2 |
| Electronics | 10 |
| General | 1 |
| Industry | 1 |
| Natural sciences | 6 |