| 摘要 |
<p>Drip irrigation emitter apparatus comprising a water inlet, a water outlet, and an elongated flowpath extending from the water inlet to the water outlet, the flowpath defining an entrance coupled to the water inlet and extending into a type one vortex region, the type one vortex region extending via an intermediate region into a type two vortex region, the type two vortex region extending via an intermediate region into a type one vortex region, and wherein the type one vortex region comprises a region including a first rounded concave corner having a first radius of curvature and a first substantially pointed convex vertex to a first side of the first rounded concave corner, and the type two vortex region comprises a second rounded concave corner having a second radius of curvature and a second generally pointed convex vertex to a second side of the second rounded concave corner.</p> |
