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Plane angle
01
平面角, 平面角度
the measure of the tilt between two lines or surfaces in two-dimensional space, typically given in degrees or radians
Example
The clock 's hands form a plane angle at noon.
钟表的指针在中午形成一个平面角度。
A corner of a book forms a right plane angle.
一本书的角落形成一个平面角。
