Keywords: VDH.jpg 2007-4-27 Own <br />Transferred from http //vi wikipedia org vi wikipedia Deshi at http //vi wikipedia org vi wikipedia vi wikipedia Deshi page is/was http //vi wikipedia org/w/index php title Tập_tin VDH jpg here All following user names refer to vi wikipedia 2007-04-27 15 25 Deshi 632×391 41463 bytes <nowiki></nowiki> Materials science Materials |