插图是科技书刊的重要组成部分,其作用是辅助文字,描绘难以用文字表述的内容。插图的绘制具有以下特点: (1)图形的示意性。为了简化图面,突出主题,插图通常是用墨线勾画出来的示意性图形。它不同于一般的工程制图,插图上附注的技术条件等文字说明常常可以全部或部分省 Illustration is an important part of science and technology books, its role is to assist the text, difficult to describe the content of the text. Illustrations drawn with the following characteristics: (1) Schematic diagram. In order to simplify the picture, highlight the theme, illustrations are usually drawn with ink lines schematic graphics. It is different from the general engineering drawing, illustrations and other technical conditions note text often can be all or part of the province