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| Beleuchtung f | |||
| Lichtenergie f | |||
| Lichtmenge f | |||
| Lichtarbeit f (the product of the luminous flux by the time it is maintained; unit: lumen-hour, Im-hr); Lichtmenge f (the product of the luminous flux by the time it is maintained; unit: lumen-hour, Im-hr) | |||
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quantity of light : 1 a las frases, 1 temas |
| Óptica rama de la física | 1 |