求翻译：本论文通过字体设计现有背景调查下，发现当前字体设计研究并不深入，针对此现状，提出了根据字体的识别性，来探讨字体演变的原因。整理了12世纪到20世纪中期的代表字体，对字体特征进行比较分析，通过眼动仪实验法及问卷调查法测试字体的识别度，并通过坐标轴曲线图进行直观展示，分析后得出最后结论。是什么意思？

In this thesis, through the existing font design background checks, the current font in-depth design study is not, for this situation, according to the font recognition, and to explore the reasons for the evolution of the font. Finishing the 12th century to the mid-20th century on behalf of the font

This paper by font design existing background investigation found that the current font, and not in-depth study design for this situation, the identification of the font, font changes to explore the reasons. Organize the 12th-century to the middle of the 20th century font, the font characteristics t

The present paper through the typeface design existing background investigation under, discovered the current typeface design research is not thorough, in view of this present situation, proposed the basis typeface recognition, discusses the reason which the typeface evolves.Reorganized for 12 centu

This paper by font design under the existing background check, find the current font design does not, for this situation, put forward based on the recognition of the font, to explore the evolution of font causes. Finishing representative of the 12th century to the middle of 20th century font, font c