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| Dreiflächen-Reflektor m | |||
| Mehrblech-Reflektor m; Triple-Reflektor m; Tripelspiegel m; Winkelreflektor m; Winkelspiegel m | |||
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| Tripelspiegel m (consisting of three mutually perpendicular plane mirror surfaces); Winkelspiegel mit drei aufeinander senkrecht stehenden Spiegelflächen (consisting of three mutually perpendicular plane mirror surfaces) | |||
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corner-reflector : 14 phrases in 5 subjects |
| Antennas and waveguides | 2 |
| Communications | 4 |
| Electronics | 2 |
| Optics branch of physics | 3 |
| Technology | 3 |