| 摘要 |
An electric blackboard eraser is provided to effectively erase the blackboard and prevent falling of chalk dust into bottom. An electric blackboard eraser comprises: a main body (10); a roller receiving portion of a first (30A) and second (30B) roller; an axis support wall (13) formed at the side wall of roller receptor; a driving motor setting room (14) formed at the upper part of main body; and a battery container (15) formed at the side of the driving motor setting room.
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