scalable video multicast造句

"' Scalable video multicast "'is a new wireless multicast technology.
In scalable video multicast, the video program subscribers can view the program in accordence with their link conditions.
The scalable video multicast has employed by many stardands, such as MBMS, MBS, DVB-H, and so forth.
It's difficult to find scalable video multicast in a sentence. 用scalable video multicast造句挺难的