它的大致轮廓是一个等边三角形。

Its outline roughly forms an equilateral triangle.

《柯林斯英汉双解大词典》

随后将获得三条粗略定义的角边，用于定义指向图像中心的近似的等边三角形。

Three roughly defined corner edges are then acquired that define an approximately equilateral triangle pointed at the center of the image.

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当设计这个测试时，您会瞬间看到三类输入输出数据：不等边三角形，等边三角形或者等腰三角形。

When designing tests for this, you immediately see three classes of input and output values: scalene, equilateral, and isosceles.

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