1　引言当我们在撰写稿件或制图时 ,总避免不了要写错字、画错划 ,如若重新抄写 ,费工费时。传统的改错方法是用橡皮擦去错字、错划。这种改正错字、错划的方法 ,不仅使稿件、图纸不美观 ,而且容易擦破纸张。如果用修改液 ,将其涂抹在错字 ,错划上 ,而后又能书写或绘制 ,这将给 1 Introduction When we are writing manuscripts or cartographic, the total can not avoid the typo to write the wrong draw, if re-copy, time-consuming work. The traditional method of error correction is to use the eraser to the wrong word, wrongly zoned. This correct typo, wrong way, not only make manuscripts, drawings are not beautiful, but also easy to rub the paper. If you use the modified liquid, smear it on the wrong words, wrongly arranged, and then can write or draw, which will give