文中把船底舵、敞水舵的流体动力和有关资料进行了比较。结果表明两者拟合良好。
The values of the fluid dynamic force of the bottom rudder and open water rudder are also compared with the related test results.
试验结果表明，桨、舵球间距的变化对螺旋桨敞水效率的影响是明显的。
The test results indicated that the variation of the spacing between propeller and rudder bulb has obvious effect on propeller open water efficiency.
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