equivalent bending surface 等效折面
bending surface rotating angle 弯曲平面转角
surface band bending 表面带弯
surface bending 表面弯曲度
Meanwhile, the drawing regulations about line segments and curly segments of tube bending surface are analysed.
同时还利用计算机图形学原理，对管件外圆表面直线段、弯曲段的三维绘制进行处理分析。
Along these edges the smoothing is sharper, which is how we can control the bending of the surface.
沿着这些边缘平滑，是锐利，这是我们如何能控制弯曲的表面。
On the basis of calcuiation and experience, through side-bending test, test piece's extensibility is relative small, and its weld surface after processed is unaffected by the piece's surface quality.
根据计算和经验，侧弯伸长率小，且焊缝表面经过加工，不受表面质量影响，所以试验结果更接近实际，更为准确。
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