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| Freiflächen f; Freiräume | |||
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| luftleerer Raum; Freiraum m | |||
| freier Speicherplatz (The space available on a hard disk for creating primary partitions and extended partions, on which logical drives can be created, formatted, and assigned drive letters) | |||
| unbebaute Fläche | |||
| freier Hohlraum | |||
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free spaces : 48 phrases in 14 subjects |
| Antennas and waveguides | 1 |
| Astronomy | 1 |
| Biology | 1 |
| Communications | 3 |
| Earth sciences | 3 |
| Electronics | 3 |
| General | 3 |
| Microelectronics | 3 |
| Natural resourses and wildlife conservation | 2 |
| Optics branch of physics | 4 |
| Physics | 14 |
| Radio | 3 |
| Technology | 6 |
| Transport | 1 |