 |
| grounded circuit: 64 phrases in 15 subjects |
| American usage, not spelling | 1 |
| Armored vehicles | 1 |
| Communications | 1 |
| Computers | 2 |
| Construction | 1 |
| Electrical engineering | 14 |
| Electronics | 13 |
| General | 2 |
| Geophysics | 1 |
| Mass media | 1 |
| Physics | 1 |
| Rail transport | 1 |
| Technology | 19 |
| Telecommunications | 5 |
| Transport | 1 |