This paper presents two kinds of new methods for setting out circular curve: freeangle and tangent length method.
介绍了测设和检验圆曲线的两种新方法：任意角夹角法和任意切线长支距法。
2
The connecting arm means connects the heel part of the pedal part and the gate-shaped frame of the supporting frame according to a freeAngle.
将所述踏板部之跟部与所述支撑框之门形框体可按自由角度进行连接的连接臂构件。
3
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