🌐فارسیEnglishDeutschEspañolFrançaisPortuguêsРусскийالعربيةفارسی한국어中文日本語EntityQ1852282· pop 17· linked from 87 articlesضریب بازتابmeasure of wave reflectivityAvailable in 17 languagesEspañolDeutsch中文РусскийPortuguêsالعربيةCatalanCroatianMalayNorwegianConnectionsphasorEntityimpedance matchingEntityCategoriesDimensionless numbers of physicsElectronic engineeringGeometrical opticsPhysical opticsSeismology measurementTelecommunication theory