Yep, it means you pick the 3rd, hammer 4th, then hammer 5th.
Being TAB it gives no indication of timing, though. The delay between each note could be anything.
One of the reasons I like this site is because both TAB and Manuscript notation is given; even if you can't read the manuscript, you can get a feel for the timing on the TAB if you understand the basics.
I wish this forum had a "block user" feature. Possibly I'm not the only one......