| |||
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 |