文中探讨了对试验结果分析的一种近似方法，即利用流体力学中的相似理论，将试验值换算成实船倒车装置上的受力。
An approximation method on experimental results is presented, which converts experiment value into full scale value by utilizing similarity theory of fluid mechanics.
建立四自由度视觉装置运动模型，导出从目标物体上的任一点到计算机图像中对应点的变换算法。
We establish four degree of freedom vision device movement model to educe the switch calculation from any dot on the object to the corresponding dot in the computer image.
针对原型泵装置性能现场测试费用较高且难以实施的问题，建立了基于模型试验的原型泵装置性能的换算公式，对不同换算方法得到的结果进行了比较和分析。
Aiming at the much cost of locale testing and the difficulty of actualization, a new conversion formula of the performance of prototype pump sets is established on the base of model testing.
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