Once the file is opened, the function begins traversing the script file once text line at a time. Each line is read in as a string.

一旦成功打开文件，函数便开始逐行遍历脚本，并把每一行都当作一个字符串读取进来。

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The concept of traversing line is presented to deal with the intersection curves of offset surfaces with planes...

提出贯穿线的概念，对截面上包含自交、重叠、干涉的无序交线进行规整处理，生成有序的无干涉刀轨。

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