依据地域经济系统理论，一个地域经济单元状态，可以从时序特征和空间结构特征进行表达，其存在状态受制于时空关联性。
According to the theory of areal economy system, the state of an areal economy unit can be expressed with the features of time series of the economic development and spatial structure.
本文围绕实时专家系统的时序性、时变性、时效性等特征，从系统设计与实现两个方面讨论建造该专家系统的一些关键技术。
Around the real time expert systems time order, time variable and timing, the kernel technology to design and build this system is discussed in the paper.
分析和仿真结果表明，通过在设计中运用信号完整性分析方法，本文设计的超高速数据采集系统能满足工作时序的要求。
The timing analysis and si simulation results show that the UHDA system can satisfy the system timing requirements with the help of the si analysis technique discussed in this thesis.
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