短語(yǔ)詞組短語(yǔ)playback k head 讀出頭;放音磁頭magnetic playback head [計(jì)]讀出磁頭recording playback head 記錄重放磁頭recording -playback head [電子]錄放兩用磁頭playback head detail 複縯磁頭combined record -playback head 複郃磁頭 返回 playback head