【摘要】 本文应用平行投影中斜投影法来解决正投影中的定位问题、求截交线和相贯线等问题，使解题简化。教学中适时适量地介绍此方法，可拓宽学生思路，提高空间构思的能力。本文介绍了应用辅助斜投影法解决各种正投影问题的方法和实例。更多还原

【Abstract】 The paper talks about the use of slant projection of parelell features in solving problems such as Location, crossing lines and intersection lines in positive projection, Which can obtain the effect of simplifying the solution. Introduced to students properly, this method can broaden the vision of the students, cultivate their ability to special construction. The examples and methods given tend to solve various kinds of positive projection problems with the aid of auxiliary slant projection method.更多还原