本底輻射 Save Sign in to save words Simplified: 本底辐射 běndǐfúshè ㄅㄣˇ ㄉㄧˇ ㄈㄨˊ ㄕㄜˋ background radiation Character by character 本(běn)root 底(dǐ)bottom 輻(fú)spoke of a wheel 射(shè)shoot A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0