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| doubly reflecting antenna; dual-reflector system; two-reflector antenna | |||
| ouble-reflector antenna | |||
| double-reflector antenna; dual-reflector antenna; backfire antenna | |||
| Gregorian antenna (основное зеркало параболическое, малое — эллипсоидальное) | |||
| Cassegrainian antenna; Cassegrainian aerial | |||
| двухзеркальная антенна: 10 phrases in 4 subjects |
| Electronics | 2 |
| Mass media | 3 |
| Technology | 2 |
| Telecommunications | 3 |