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1·Classical maximum area of inscribed triangle is extended in this paper.

推广了经典的圆内接三角形面积最大值问题。

2·Its specially-shaped leaf spring constitutes a triangle with the candle being fixed in the position of inscribed circle of the triangle.

在蜡台上设有特殊的成型片弹簧。弹簧夹口呈三角形状，蜡烛被固定在三角形内切圆位置上。

3·A new method for solving the coordinates of circular points in an image of an equilateral triangle and its inscribed circle was proposed.

提出了一种求解等边三角形及其内切圆的图像圆环点坐标新方法。

4·A square is inscribed in triangle ABC with one side on AB.

它就是根据已知三角形的三边长来…第一步；