| 单词 | equilateral arch |
| 释义 | > as lemmasequilateral arch equilateral arch: an arch, in which the chords of the sides form with the base an equilateral triangle. equilateral hyperbola, one whose axes are equal. equilateral shell, one in which a transverse line drawn through the apex of the umbo divides the valve into two equal and symmetrical parts.extracted from equilateraladj.< as lemmas |
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