| 摘要 |
The device (1) has a swingable nozzle head (2) provided with a housing (21) and nozzles (22). A cylindrical drive housing (3) is provided with a drive (22). A cuboid adaptor (4) is provided with a cylindrical storage (41). A flattening support (6) is provided with a plug-in tip (62). A nozzle is provided with a connection channel and directed along cross-section of the nozzle head. Height of a water channel of the nozzle head is perpendicular to a nozzle surface of constant width. Water volume is yielded at each location of the channel. |
