Draw Lines - Slight surface variations in the form of ridges which run with the flow direction of the float ribbon and which cause interference of the vision when viewed at a sharp angle of sight.

• 画线-玻璃表面轻微的山脊状的变形，它与玻璃带的流动方向相同，且当视线以锐角进行检查时，能造成视觉干涉。