本文给出了一般二维数字系统的两种高效率状态空间结构；
Two computationally efficient state-space structures for general 2-D digital systems described by Roesser's local state-space model are presented.
对给定分割，给出了可以块解耦的系统状态空间结构和导致这种结构的座标变换。
The state space structure of a system which can be block decoupled is obtained with the help of the coordinate transformation.
载体形式的嬗变，特定时间与空间结构，以及社会分层状态，都与媒介趣味的存在构成复杂的联系。
There are complex relations between media taste and those, changes of media vehicles, special structures of time and space and status of social stratification.
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