| 摘要 |
A vacuum unit removes abrading dust through a suction line communicating with a dust confining shroud which overlies and extends around the abrading pad of the machine. The shroud is telescoped rotatably over the motor unit of the machine and is suspended from the suction line which, in turn, is pivotally supported on top of the motor unit and is adapted to be turned relative to the handle of the machine to enable maneuvering of the machine without interference from the suction line.
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