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| light yield | |||
| light efficiency (yield); light transmittance efficiency | |||
| lumen output | |||
| light emitting efficiency | |||
| luminosity factor | |||
| luminous efficacy (eines Leuchtmittels); luminosity; luminous efficiency (Lichtquelle) | |||
| light efficiency; light output; luminous efficiency | |||
| light yield (of a photocathode or a scintillator) | |||
| efficiency of light | |||
| quantum efficiency (e.g. of luminescence) | |||
| lamp efficacy; luminous efficacy | |||
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Lichtausbeute : 5 短语, 3 学科 |
| 光学（物理学分支） | 3 |
| 技术 | 1 |
| 照明（电影院除外） | 1 |