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| σηματοδότης κυβερνείου σιδηροδρομικών γραμμών | |||
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interlocking : 122 phrases in 12 subjects |
| Chemistry | 1 |
| Communications | 38 |
| Earth sciences | 1 |
| Electronics | 2 |
| Information technology | 7 |
| Labor law | 1 |
| Materials science | 2 |
| Mechanic engineering | 4 |
| Metallurgy | 1 |
| Natural sciences | 1 |
| Technology | 1 |
| Transport | 63 |