In recent years, the mixed reinforcement partially prestressed concrete (P. P. c) has been widely used in the engineering structure, especially in great size structures.
近年来，混合配筋部分预应力混凝土在工程结构中已经普遍使用，特别是在大尺寸的结构当中。
2
For each P. C. board the "mount" will include a connector mounting to the P. C. board connector.
对于每个线路板，“安装”都包含一个安装到线路板上的连接器。
3
The descent of the activeness of SOD(P<0.05), GSH-Px(P<0.05) and the increasing of the activeness of alkaline phosphatase(P<0.05) and osmotic fragility were improved by adding of vitamin C and E.