讨论了通过求作二面角的棱来求二面角的大小问题。
The problem is discussed, that seeks the size of the dihedral Angle by seeking to do the edge of the dihedral Angle.
本文以命题形式讨论无棱二面角的平面角大小的几种解法并加以证明和举例。
In the form of propositions, this paper discusses several solution methods of the size of dihedral angles and proof and example are also offered.
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