pavement planeness路面平整度
surface planeness表面平整度
Planeness Passbys裂缝量较好
Planeness value平面度值
planeness measuring平面度测量
Planeness Measurement平面度测量
planeness error平面度误差
planeness assess平面度评定
plane planeness平板平面度
So high precision of the mechanical cutting of each segment end face was required. For example,it was specified that planeness≤0.25mm,roughness≤12.5μm,inclination error between the axes and end face≤20"(1/10000).
钢塔节段端面机械切削加工及精度管理南京长江三桥每个钢塔柱共有22个节段,节段间采用“端面金属接触+摩擦型高强度螺栓”连接传力,这就要求每个节段有很高的端面机械切削加工精度,如:端面平面度≤0.25mm,粗糙度≤12.5μm,节段轴线与端面直角度≤20″(1/10000)。
参考来源 - 南京长江三桥钢塔节段制造及整体预拼的三维仿形分析