当实现对等边三角形和等腰三角形的测试时，我认识到我只用了delta值来用于直角三角形的计算。
As I implemented the tests for equilateral and isosceles triangles, I realized that I was using only the delta value for calculations in right triangles.
结论普通人群宫腔形态以形态规则的等腰三角宫腔和等边三角宫腔为主。
Conclusions in general endometrial cavity is mostly isosceles triangle or equilateral triangle.
结论普通人群宫腔形态以形态规则的等腰三角宫腔和等边三角宫腔为主。
Conclusions In general, endometrial cavity is mostly isosceles triangle or equilateral triangle.
给儿童介绍不同种类的三角形，如等边三角形、等腰三角形、不等边三角形和直角三角形。
Introduce children to different kinds of triangles, such as equilateral, isosceles, scalene, and right.
给儿童介绍不同种类的三角形，如等边三角形、等腰三角形、不等边三角形和直角三角形。
Introduce children to different kinds of triangles, such as equilateral, isosceles, scalene, and right.
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