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back-up system; backup system; standby system; backup |
sistema di riserva : 14 phrases in 9 subjects |
Communications | 1 |
Economy | 1 |
Electric motors | 1 |
Electronics | 2 |
Finances | 3 |
General | 1 |
Information technology | 3 |
Mechanic engineering | 1 |
Transport | 1 |