| 摘要 |
<p>The brush has an opening in its body in which a fan is fitted and can turn freely on bearings. A flow of liq. is directed onto the fan by a nozzle to turn the fan and to make the body and bristles of the brush vibrate. The fan has vanes and an eccentric weight is fixed between two of them. The nozzle is joined to a flexible hose that goes through the handle of the brush. The liq. from the fan passes through a hole onto the bristles.</p> |
