摘要
给出了单面或两面投影成直角的空间平面角的解析表达式及图谱,以便实际应用时选择,并以此深化画法几何的教学和工程应用。
The analytic expression and their map atlas about space plane angels that they are right angel on single projection plane or two projection planes are given in this paper, in order to choose in practical application and to strengthen the teaching of the de- scriptive geometry and in engineering applications.
出处
《燕山大学学报》
CAS
2004年第5期400-403,共4页
Journal of Yanshan University
