digital audio broadcasting
noun [ U ] uk/ˌdɪdʒ.ɪ.təl ɔː.di.əʊ ˈbrɔːd.kɑː.stɪŋ/ us/ˌdɪdʒ.ɪ.t̬əl ɑː.di.oʊ ˈbrɑːd.kæs.tɪŋ/ (abbreviation DAB)
数字音频广播
a system of broadcasting sound and written information using electronic signals that represent a series of the numbers 0 and 1