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работа прибора (youtube.com Butterfly812) | |||
эксплуатация КИП (MichaelBurov) |
instrument operation : 19 phrases in 8 subjects |
Aviation | 2 |
Law | 3 |
Makarov | 1 |
Mathematics | 1 |
Military | 8 |
Oil / petroleum | 1 |
Technology | 2 |
Weapons of mass destruction | 1 |