One-call it a-is part of the originaltransmission.
一个被称作a的光子来自最初的信源。
2
Original video data must be compressed for transmission in wireless network because of its high bandwidth.
由于原始视频信号数据量巨大，必须经过压缩才能在无线网络中传输。
3
XED is the expansion of the XML supporting modules based on the original database, which accomplishes format conversion and transmission completes between XML data and database.