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| index mark (записи на магнитной ленте); beginning mark | |||
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| start tone (программы) | |||
| метка начала: 30 phrases in 11 subjects |
| Communications | 1 |
| Computers | 4 |
| Electronics | 2 |
| General | 1 |
| Information technology | 6 |
| Makarov | 2 |
| Mass media | 4 |
| Scientific | 1 |
| Technology | 7 |
| Telecommunications | 1 |
| Textile industry | 1 |