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closed protocol ("Protocol", in terms of electronic products, refers to the way in which the products communicate with each other and are described as "open", "closed", "digital" and 'analogue'.  apollo-fire.com Alexander Demidov) | |||
| закрытый протокол: 1 do fraz, 1 tematyki |
| Ochrona systemu elektroenergetycznego | 1 |