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| record track layout (напр. на магнитной ленте) | |||
| record track layout (на магнитной ленте) | |||
| track layout (ssn) | |||
| расположение дорожек: 12 phrases in 6 subjects |
| Automated equipment | 1 |
| Aviation | 1 |
| Electronics | 4 |
| Information technology | 3 |
| Mass media | 1 |
| Technology | 2 |