interlocking : 75 phrases in 14 subjects |
Chemistry | 1 |
Communications | 18 |
Earth sciences | 2 |
Electric traction | 1 |
Electronics | 2 |
Industry | 11 |
Information technology | 5 |
Insurance | 1 |
Labor law | 2 |
Mechanic engineering | 2 |
Metallurgy | 2 |
Natural sciences | 1 |
Rail transport | 11 |
Transport | 16 |