实物剖面图,适用于认识作业。绘制方法: 首先画好实物的正面形状图,如图一、三、五、七,然后在教学需要显示的部位用刀剖开,再在剖开画面处的背面贴上白纸(如图上虚线所示位置),在贴上的白纸上再画上所要显示的物体的内部图象,如图二、四、六、八。(张端英) Physical profiles, for understanding homework. Draw method: first draw the physical shape of the front figure, as shown in Figure one, three, five, seven, and then teach the need to display the site with a knife cut open, and then split the screen at the back of paste white paper (as shown Dotted line shows the location), in the paste on the white paper and then draw the object to be displayed inside the image, as shown in Figure II, IV, VI, VIII. (Zhang Duan Ying)