back curve meaning in Chinese

后弧线

Broken - back curve
断背曲线
A control method is presented where least square arc approximation and timed interpolation are employed . using it , the number of segments of fitted curves is made minimum while the accuracy is guaranteed , so that data transmission between cad and cnc systems is decreased and setted feeding rate can be realized . this method has already success fully been used for flame cutting and controlling saddle - backed curve for pipe connection when feeding rate is required to be higher
提出了一种采用最小二乘法圆弧逼近及定时插补控制方法，在保证精度的前提下，可使拟合圆弧段数最少，从而减少cad系统与cnc系统的数据传送，可实现给定进给速度.该方法已成功地应用于要求较高进给速度的接管马鞍型曲线火焰切割拟合控制