Polish ⇄ Arabic Basque Bulgarian Catalan Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Irish Italian Latvian Lithuanian Maltese Norwegian Bokmål Portuguese Romanian Russian Slovak Slovene Spanish Swedish Turkish Ukrainian

poziom promieniowania promieniowanie pochodzące ze źródeł naturalnych
environ.	背景辐射 (来自于自然界的辐射而非来自于人为来源的辐射，正常情况下人们每日都暴露于此辐射下，例如来自于岩石和土壤。)