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1·Snap two intersecting lines over the floor with your chalk snapline.

用你的粉笔线在地板上画两条相交的线。

2·Besides, according to the expression mentioned above an accurate projective curve of intersecting lines can be drawn by a computer.

而且据解析式还可在计算机上绘出相贯线投影的准确图形。

3·The algorithm makes full use of geometric information of intersecting lines to speed up the calculation according to the arc height tolerance.

在跟踪求交的算法中充分利用了交线的几何特性，按等弓高误差快速精确地求取曲面上的交线。

4·For the first class of elliptic systems, the problem given analytic data on two arbitrary intersecting lines is well-posed if condition (D) is invalid;

本文讨论了第一类椭圆组的一个定解问题，证明了：如果条件（D）不成立，则在任意两条相交直线上给出解析数据的定解问题是适定；

5·Through the intersection test of the triangles, the intersecting lines could be obtained and the intersecting lines topology relations with the triangles could be established.

接下来求出两相交三角形之间的交线，建立与三角形的交线拓扑关系；

6·A great many intersecting lines exist among steel tube truss structure but the traditional manual-lofting cut can no longer fulfill the requirement for precision and mass production.

钢管桁架结构中存在大量的钢管相贯连接节点，传统的人工放样切割已经不能满足精度和工厂化生产的要求。

7·This paper presents the way of changing coordinates in program design, locating the endpoints the intersecting lines and solving the problems with visibility of three-plane projection.

文中主要介绍了程序设计中的坐标变换、交线端点的求解，以及在三面投影中可见性问题的解决方法。

8·Compared with the traditional lofting methods, the marking scriber has the advantages of high efficiency, convenient operation, accurate intersecting lines, and regular intersecting lines.

使用本划规与传统的放样方法相比，效率高，操作简便，且画出的相贯线准确、规整。

9·What it means rather is that, if one reflected on one's life, one could reasonably see it in terms of various story lines, whether parallel or intersecting or distinct.

把人生比成故事其实是指，人们回看人生就像看到若干的故事线一般，平行也好，交叉也罢，或全无关联。

10·The third one I don't know what the hell it is either, and it's perhaps the craziest of them all: Thousand of lines intersecting in a Titanic grid that is about 18 miles long.

第三个结构我也不知道它是什么，而且最疯狂的是：它数据千计巨大的长达18英里的网格线交织而成。