First, the theory foundation of SDH digital cross-connect matrix is dissertated.
首先，论文对SDH数字交叉连接矩阵设计的理论基础进行了介绍。
A matrix switch can connect any input to any output.
矩阵开关能将任意输入连接至任意输出。
Use the procedure modification PC the high a word to makes it combined with P1 to realize to pick up 8 LEDS display and combines to realize to the port of P3 to connect to the keyboard matrix.
用程序修改PC高位字节使之与P1口组合实现对多位8段LED显示器的接口，并对P3端口组合实现对键盘矩阵的接口。
Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration.
裂缝不仅可以使孤立的孔洞得以连通，发育成有效的储集空间，大大提高基质渗透率，更是油气的主要运移通道。
Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration.
裂缝不仅可以使孤立的孔洞得以连通，发育成有效的储集空间，大大提高基质渗透率，更是油气的主要运移通道。
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