Hi Mohsen,
Thanks for your screenshot. Just what I expected. If I open the translation in a text editor (PSPad) it already looks like this:
#. Resource IDs: (1127)
msgid "Hint: Press F5 to refresh the selected subtree and Ctrl-F5 to load all children too"
msgstr "کمک: برای بارگزاری مجدد زیرشاخه انتخاب شده F5 و برای بارگزاری همه فرزندان Ctrl+F5 را کلیک کنید"
so I guess, the order of the substrings in the po file is already wrong.