 |
| |||
| clocktrack (ssn) | |||
| clock track; location holes | |||
| center hole | |||
| synchro-track | |||
| feed hole | |||
| control track (ssn) | |||
| centering hole (на перфоленте); feed holes (на перфоленте); sprocket holes (на перфоленте) | |||
| center holes; feed holes; guide holes; reference track; sprocket channel (на перфоленте); sprocket holes; timing track; sprocket track; sprocket hole strip | |||
| синхродорожка: 6 phrases in 4 subjects |
| Computers | 1 |
| Information technology | 3 |
| Mass media | 1 |
| Programming | 1 |