mechanical switching: 42 phrases in 16 subjects |
Automated equipment | 4 |
Construction | 1 |
Electrical engineering | 7 |
Electronics | 7 |
General | 1 |
Mechanics | 1 |
Military | 1 |
Power system protection | 1 |
Programming | 3 |
Quantum electronics | 2 |
Rail transport | 1 |
Robotics | 1 |
Signalling | 1 |
Technology | 9 |
Telecommunications | 1 |
Transport | 1 |