重叠数据通道

[计] overlapped data channel, overlapping data channel

chóng dié shù jù tōng dào ㄔㄨㄥˊ ㄉㄧㄝˊ ㄕㄨˋ ㄐㄩˋ ㄊㄨㄥ ㄉㄠˋ