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| disc (A round, flat piece of nonmagnetic, shiny metal encased in a plastic coating, designed to be read from and written to by optical (laser) technology) | |||
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disk : 57 do fraz, 4 tematyki |
| Inżynieria mechaniczna | 6 |
| Leśnictwo | 2 |
| Microsoftu | 47 |
| Technologia informacyjna | 2 |