🌐EnglishEnglishBahasa IndonesiaEspañolFrançaisItalianoNederlandsPolskiفارسی한국어中文日本語EntityQ3933836· pop 8· linked from 27 articlesreturn losstermAvailable in 8 languagesEspañol日本語ItalianoBahasa IndonesiaPolskiفارسی한국어via Wikidata sitelinks · CC0ConnectionsglassEntitytelecommunicationsEntityCategoriesElectrical parametersEngineering ratiosFiber opticsRadio electronicsWave mechanics