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在绘图工作中，修改透图纸的情况是很难避免的；可是由于透图纸很薄，着墨后修改起来很麻烦，图纸往往很容易被擦破、刮破和弄得起绉，如果第二次修改起来就更困难了；同时修改的时间也很长，直接影响了绘图工作效率和质量的提高。五○四队绘图组针对这一问题作了研究，并在最近成功地试验与推行了“快速修改透图法”，大大地提高了工作效率。
In the drawing work, it is very hard to avoid changing the drawings. However, because the drawings are very thin, it is very troublesome to modify them after inking. The drawings are often easily scratched, scratched and creased. If the second time It is even more difficult to modify it. At the same time, the time for modification is also very long, which has a direct impact on the efficiency and quality of the drawing work. The drawing team of the 504 team has conducted a study on this issue and has recently succeeded in testing and implementing the “Rapidly Modified Tupu Method”, which has greatly enhanced its work efficiency.