negative phase
| sequence relay
| negative phase abbr. | |
| med. | phase négative |
| sequence relay abbr. | |
| el. | relais T; relais de train |
| |||
| phase négative | |||
|
negative phase : 5 phrases in 3 subjects |
| Automated equipment | 1 |
| Mechanic engineering | 3 |
| Radio | 1 |