 |
| |||
| luminous efficacy; lamp efficacy | |||
| |||
| luminous efficiency of radiation | |||
| eficiência luminosa: 6 phrases in 4 subjects |
| Earth sciences | 1 |
| Electronics | 2 |
| Lighting other than cinema | 2 |
| Transport | 1 |
|
| |||
| luminous efficacy; lamp efficacy | |||
| |||
| luminous efficiency of radiation | |||
| eficiência luminosa: 6 phrases in 4 subjects |
| Earth sciences | 1 |
| Electronics | 2 |
| Lighting other than cinema | 2 |
| Transport | 1 |