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我们在实际工作中，根据切线支距法和偏角法的特点，摸索出一种测设曲线至为简易而精确的方法，称为弦线支距法。介绍于次。
In our actual work, according to the characteristics of the tangent line method and the declination method, a simple and accurate method for setting up the curve is explored, which is called the string pitch method. Introduced in times.