radio waves（无线电波）是什么意思？音标发音+图解场景

无线电波 /ˈɹeɪdɪˌəʊ ˈweɪvz/ n

English: radio waves · 无线电波

释义：Very long electromagnetic waves (about 1 meter) having low frequency; they are used to transmit information (television, radio). walkie-talkie

这个词出现在以下图解场景（1）