Results The middle line through ANS and perpendicular to zygomaticofrontal line has less mean of middle structure index and side middle structure index.
结果以过ANS点垂直于两侧颧额点连线的直线为面中线，其正中结构指数和侧方结构指数均值较小。
Then ending line is perpendicular to the orientation line and passes through one of the corners of the rectangle.
还有结束线也垂直于方向线，并且通过矩形的其中一个角。
The starting line is perpendicular to the orientation line and passes through one of the corners of the rectangle.
起始线与方向线垂直，并经过矩形的一个角。
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