... 8 线路中线测量 center line survey， location of route 9 偏角法 method of deflection angle 0 切线支距法 tangent off—set method ...
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method d of deflection angle 偏角法
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The traditional method to measure the curves in exiting railway is the method of deflection Angle, while the method to calculate the curvatures and the deflection distance is the involute method.
在测量既有铁路曲线时，传统的测量方式是偏角法，计算曲率和拨距的方法是渐伸线法。
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