用测得的数据进行曲线拟合，并与刀具的实际编程轨迹相比较。
The curve is made by the measured data and is compared to the programmed tool path.
实验结果表明，采用图像处理技术是可以将一个采集来的图像经过边缘锐化和边缘检测形成比较清晰的轨迹，能够拟合出比较精确的方程。
Experiments specify that we can get the accurate edge trace and the equations fitted from the collecting data through edge sharpening and detection of image processing technique.
特点是采用曲线拟合的方式，根据上述轨迹的曲线形状，可以快速算得发电机在故障后的暂态稳定指标。
According to the curve shape above mentioned trajectory the transient stability index of generator after accident occurred can be quickly calculated.
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