 |
| |||
| light efficiency; luminous efficiency | |||
| luminous efficacy (MichaelBurov); luminaire efficiency (MichaelBurov); luminary efficiency (MichaelBurov); light output ratio (MichaelBurov) | |||
| lumen efficiency; luminous efficiency (светильника) | |||
| lumen output | |||
| light output (источника) | |||
| light efficiency (источника); light output; luminous efficiency (источника) | |||
| светоотдача: 10 phrases in 8 subjects |
| Cathode-ray tubes | 1 |
| Construction | 1 |
| Electrical engineering | 1 |
| Lighting other than cinema | 1 |
| Makarov | 1 |
| Mass media | 2 |
| Sakhalin | 1 |
| Technology | 2 |