 |
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| sistema di riferimento | |||
| schema di riferimento | |||
| English thesaurus | |||
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| anchor frame (ssn); reference picture (ssn); frame of reference (ssn) | |||
| reference frame: 11 phrases in 6 subjects |
| Astronomy | 2 |
| Economy | 1 |
| Electronics | 5 |
| Law | 1 |
| Physical sciences | 1 |
| Satellite communications | 1 |