An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles.等边三角形不能分成有限多个不全等的等边三角形.It passes through the N atom and through the center of the equilateral triangle.它通过N原子及三个H原子组成的等边三角形...

等边三角形...

equilateral triangle的音标：equilateral triangle的英式发音音标为：[ˌi:kwɪˌlætərəl 'traɪæŋgl]equilateral triangle的美式发音音标为：[ˌikwə'lætərəl 'traɪˌæŋɡəl]...