 |
|
switching-on : 67 phrases in 18 subjects |
| Agriculture | 2 |
| Automated equipment | 1 |
| Aviation | 1 |
| British usage, not spelling | 1 |
| Chemistry | 6 |
| Coal | 1 |
| Communications | 9 |
| Computers | 2 |
| Earth sciences | 5 |
| Electronics | 13 |
| General | 7 |
| Informal | 1 |
| Information technology | 3 |
| Magnetics | 1 |
| Mechanic engineering | 6 |
| Rail transport | 1 |
| Technology | 1 |
| Transport | 6 |