通过室内试验，研究地下滴灌滴头负压堵塞与滴头出水口形式、滴头流量间的关系，发现滴头出水口形式对滴头抗堵塞性能影响显著。
The results of the experiment indicated that the outlet form of emitters affected the anti-clogging performance of negative pressure more than the flow rate of emitters.
试验也证明了五孔和喇叭形伸入式水口是浇注方坯的两种好的水口形式，这两种水口对减小流股在结晶器内的穿透深度是十分有效的；
The test has also proved that both types of immersion nozzles, one with five holes and the other "v"-shaped design are very effective in decreasing the penetration depths in moulds.
应用推荐