This is your clue that the FD refers to a deleted file.

通过这个线索，就可以知道该FD指向一个删除的文件。

youdao

Note: in the Settings we always check the box "Copy to Quarantine". In case a deleted file is found useful, you can restore it from the NOD32 Quarantine.

注：在设定中我们会勾选“复制到隔离区”，万一你有用的档案被删除了，也可以在NOD32隔离区中复原过来。

youdao

At this point, you can stop the daemon (which eliminates the FD and, hence, the deleted file), copy the temporary file to where it is expected, and then restart the daemon.

此时，您可以中止该守护进程(这将删除FD，从而删除相应的文件)，将这个临时文件复制到所需的位置，然后重新启动该守护进程。

youdao

But Mr. Massoud said the FBI report still doesn't adequately explain why one file was deleted.

WSJ: FBI Backs Singapore View on U.S. Man's Death

With rights management, rentals allow you a 30 day window to start watching the movie, but once you've begun you have 24 hours to enjoy before the file gets deleted.

ENGADGET: Amazon's Unbox video download service goes live

He said the person who accessed the hard drive had opened a file related to Todd's work with institute, created a copy of that file and then deleted the copy.

WSJ: FBI Backs Singapore View on U.S. Man's Death