We get the parameters of shape characteristics of knot through the processing of revising, strengthening and edge measuring for the image of knot.

通过对节子图像进行修正、增强、边缘检测等处理，提取节子的形状特征参数。

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The method of measuring out quartz crystal's birefringence dispersion character through polarization interference and processing correlated data was introduced.

介绍了偏光干涉测量石英晶体双折射率色散特性及其相关数据处理方法。

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Accurate average parameters of engine can be obtained through proper layout of measuring points and appropriate data processing according to the features of the flow fields.

本文还讨论了整台发动机台架试车的参数测毽力法，根据流场特点合理布置测点，适当处理数据，获得较精确的发动机平均参数等方面的问题。

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