Open water test and cavitation test of standard propeller 4119 are carried out in depressurized towing tank.
本文选用标准桨模4119，在减压拖曳水池进行了常压下的敞水重复试验及减压下的空泡性能试验。
For the scale effect of cavitation test, the influence of gas nucleus on scale effect is analyzed in this paper.
针对空化试验的比尺效应，主要分析气核对空化比尺效应的影响。
To improve the cavitation performance of diaphragm metering pump, a comparison of cavitation test is made between the modified diaphragm metering pump and the original measuring pump.
通过对改造的隔膜计量泵与原有的计量泵进行的汽蚀试验对比，给出了隔膜计量泵性能与现场使用的最佳匹配工况。
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