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本文探讨了水喷射泵的流动过，指出影响抽气量的因素之一是射流的结构形式，而不是将水流分散为水滴的能力。通过对流线型喷咀的实验，再次肯定了导流片的显著效果，作者认为用园旋理论可以作出恰当的解释。在整理试验数据时，发现用全苏热工研究所的方法计算这种流线型喷咀的泵，会导致不能容许的误差，因此对其计算系数进行了修正。
This article explores the flow of water jet pumps, pointing out that one of the factors that affect the amount of air suction is the jet’s structure rather than the ability to disperse the water into droplets. Through the experiment of convection nozzle, we reaffirm the remarkable effect of the guide plate. The author thinks that we can make a proper explanation by using the theory of circular rotation. In compiling the experimental data, it was found that calculating the pump of this streamlined nozzle by the method of All-Japan Thermal Research Institute resulted in an unacceptable error and therefore the correction factor was calculated.