| Standardization field | Electrical engineering | 
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| Technical committee | BAS/TC 30- Electric cables | 
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| Term (EN) | optical cavity, resonant cavity | 
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| Definition (EN) | A region bounded by two or more reflecting surfaces, whose elements are aligned to provide multiple reflections and in which a standing wave can exist at particular wavelengths. | 
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| Term (FR) |  | 
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| Definition (FR) |  | 
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| Term (DE) |  | 
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| Definition (DE) |  | 
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| Term (BS) |  | 
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| Definition (BS) |  | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) | optička šupljina, rezonantna šupljina | 
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| Definition (SR) | Regija omeđena s dva ili više reflektirajućih površina, čiji su elementi usklađeni kako bi osigurali višestruke refleksije te u kom stojeći talas može postojati na pojedinim talasnim dužinama. | 
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| Date | 2017-08-10 | 
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| Standards | BAS IEC 60050-731:2017 | 
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