| 摘要 |
<p>With a nozzle comprising a cylindrical body having an axial passage in which is formed a venturi tube outflow section are provided an axial air inlet parallel to the axis of said venturi tube section and a supply of water transverse to the axis of said cylindrical body and upstream from said venturi section so that the nozzle can be mounted directly transversely in a duct for supply of water under pressure.</p> |
