CAJ | 학술논문

平面立体的截切是工程制图学习中的难点之一，体现在空间想象和解题上。在正确理解平面的投影特性基础上，可以从基本体入手，利用截平面的投影特性，特别是垂直面的投影特性（一斜线二类似）来达到解题目的。
평면입체적절절시공정제도학습중적난점지일，체현재공간상상화해제상。재정학리해평면적투영특성기출상，가이종기본체입수，이용절평면적투영특성，특별시수직면적투영특성（일사선이유사）래체도해제목적。
The plane three-dimensional cutting is one of the difficulties in engineering graphics study, reflecting on the spatial and problem solving. Based on projection properties in the plane of the correct understanding, one can start from the basic three-dimensional, using the planar projection features, especially projection features of the vertical plane (an oblique line and two similar shapes) to achieve the problem solving.