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| wskaźnik jednostki sygnalizacyjnej | |||
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signal : 22 phrases in 12 subjects |
| Automatic control | 1 |
| Communications | 1 |
| Economics | 1 |
| Finances | 1 |
| Life sciences | 1 |
| Lighting other than cinema | 1 |
| Nautical | 1 |
| Piezoelectric crystals | 1 |
| Rail transport | 5 |
| Telecommunications | 1 |
| Telegraphy | 4 |
| Transport | 4 |