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扁圆是1个封闭的平面曲线,常用来近似地画椭圆。它有2个互相垂直的对称轴,是由4段圆弧连接而成的,故叫四心扁圆,简称扁圆。随着
Oblate is a closed plane curve, commonly used to approximate the oval. It has two mutually perpendicular axis of symmetry, is connected by 4 arcs, so called four heart Oblate, referred to as oblate. along with