| |||
| affaiblissement du signal en absence de courant de ligne | |||
|
non-operating : 30 phrases in 13 subjects |
| Aviation | 3 |
| Banking | 1 |
| Communications | 4 |
| Economics | 3 |
| Electric machinery | 1 |
| Electrical engineering | 4 |
| Finances | 5 |
| General | 2 |
| Law | 1 |
| Marketing | 2 |
| Mechanic engineering | 1 |
| Reliability | 2 |
| Transport | 1 |