| 摘要 |
<p>A floor cleaning machine provided with three spaced-apart floor-facing rotationally drivable cleaning heads, each having a working axis of rotation generally perpendicular to the floor surface, the machine being provided with wheel means permitting translational movement of the machine along a cleaning path over a floor surface and an adjustable mounting means configured to permit selective adjustment of relative spatial locations of the cleaning heads so that a cleaning path swept by the heads may be selectively adjusted.</p> |
