1·It's the common way to predigest the ellipse to four arcs in hand-drawing or construction lofting.
把椭圆线简化为四段圆弧，是手工作图或施工放样的常用方法。
2·This method also applies to production of lofting elbow. Therefore it has more powerful of practicability.
该方法同样适用于弯头的制作放样，具有较强的实用性。
3·This paper points out this can fit small and middle shipyard using computer in the tubing lofting.
验证了利用这种方法对中小船舶进行计算机辅助放样的可行性。
4·In this paper, the characters of transmission line tower joint structure are analysedand the method of transmission line tower lofting based on joint parameters is putforword.
通过分析输电铁塔节点的结构特点，提出了基于节点参数化的输电铁塔结构放样方法。
5·Tile laying on the surface with a high position, a steep slope and a complex spatial shape, is difficult to the measurement, lofting and cutting of the tiles.
位置高、坡度大、空间复杂的瓦片铺设面往往给瓦片测量、放样、下料带来困难。