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Apple QuickTime movie  |  1996-06-03  |  6.3 MB  |  300x228  |  15fps  |  30 seconds  |  [MooV/TVOD]
Transcription: The grader smooths out rough surfaces to make a perfect grade that's suitable for paving. The grader has a large sharp blade called a moldboard. By passing back and forth, it scrapes the roadbed and gets rid of bumps. It pushes the dirt and spreads it evenly, filling in any holes, leaving the road perfectly smooth. you