17  徐州台线应变测量时值曲线(N60°W钻孔弦频式)

     (a)实测曲线(实线)和理论固体潮曲线(虚线);

     (b)实测时值差分曲线

Fig.17  Curves of hourly value of linear strain at 

        Xuzhou  station

       (a)actual observation curve(solid line) and 

        theoretical solid tide curve(dashed  line);

       (b)curve of hourly value of difference by actural 

        observation