def get_sss
      recl = 8

      begin
        sss = (0..2).map do |i|
          File.binread(@bin_path, recl, @pos + recl * i).unpack("d*")[0]
        end
        @pos += recl * 3
        return sss
      rescue => e
        raise
      end
    end
def get_sss
      recl = 8

      begin
        sss = (0..2).map do |i|
          File.binread(@bin_path, recl, @pos + recl * i).unpack("d*")[0]
        end
        @pos += recl * 3
        return sss
      rescue => e
        raise
      end
    end
=========================================================================
 SS

 @param:  <none>
 @return: Array of SS
=========================================================================