 |
| |||
| efficiency; operating efficiency | |||
| lamp efficacy; luminous efficacy | |||
|
efficiency : 25 phrases, 13 sujets |
| Agriculture | 2 |
| Chimie | 2 |
| Commercialisation | 1 |
| Construction | 1 |
| Économie | 2 |
| Électronique | 1 |
| Finances | 1 |
| Général | 5 |
| Informatique | 1 |
| Sciences de la Terre | 3 |
| Sciences de la vie | 2 |
| Sciences naturelles | 3 |
| Technologie | 1 |