| 摘要 |
<p>Portable hair dryer of the type having a hood with a blower and heater mounted on it, the blower having a centrifugal fan with radially extending blades having convexly curved leading faces, each blade being secured along its trailing edge to an imperforate disc, the fan being mounted at the exit end of a duct with the tips of the leading edges of the blades within the duct and the remainder of the blades outside the duct.</p> |
