angle between lines of position 位置线交角
angle between centre lines 中心线夹角
The Angle between Two Lines 两直线的夹角
The Angle between a linear feature and a horizontal line in a vertical plane containing both lines.
一个直立的平面内介于一线性特征与一条水平线之间的角度。
PROJECTION that preserves the Angle measure between any two lines.
保持任意两条线问夹角的度量不变的射影。
The miter length can be large when the angle between two lines is small.
当两条直线之间的角度很小时，斜接长度会很大。
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