PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠PVDF︾≠壹≠