cgsecurity.org

Hello,
A few days ago when I transferred data from one external disk to this 1tb wd elements, I unplugged it without safety quit from table (Mac OS 10 ei capitan).then the 1tb wd elements disk could not mount by system.
In the disk utility, this external disk showed with grey colour.i clicked mount but did not work.i tried to scan with diskdrill ,all the folder and files are there,need a rebuild of partition table . Then I tried testdisk, it prompted a analysis, taking many hours ,not even 1% finished. I would like to know whether there is a quick way to rebuild the partition table for this disk .
When I got it ,it was pre-formatted with fat32,then I formatted it to hfs+ by Mac disk utility.
Thank you for any valuable reply

What is the results of a fsck on your partition ? (Read https://www.cgsecurity.org/testdisk.pdf if you don't know how to run fsck)

sorry i cannot upload the pic. The manual is good
I tried the "sudo fsck_hfs -r -d" command,it returned checking info,said the volume was repaired successfully.
Checkhfs return 0 fsmodified =1
But I still can not mount this volume.
All the data are classified as "other" type.
In "diskdrill" I can see all my folder there.