heptagon

英式音标：[ˈheptəgən]

美式音标：[ˈheptəgɑn]

词汇分类：O/A level 分类英语词汇（上）数学、物理、化学、生物,物理专业词汇,最全词根词缀表（含例词）,真•词根词缀记忆——李平武,美国数学竞赛AMC8,生长和形态 2

概况：

n. 七角形；[数] 七边形

词义：

n.

七角形，七边形；

英英释义

heptagon[ 'heptəɡən ]

n.a seven-sided polygon

用法：

权威例句

Pentagons and heptagons in the first water layer on Pt(111).

Carbon arc production of heptagon-containing fullerene[68].

Pentagons, heptagons and negative curvature in graphite microtubule growth

Stability of dislocation defect with two pentagon-heptagon pairs in graphene

A Symbol of Uniqueness: The Cluster Bootstrap for the 3-Loop MHV Heptagon

Structural and electronic properties of pentagon-heptagon pair defects in carbon nanotubes.

The nature of strength enhancement and weakening by pentagon-heptagon defects in graphene

The nature of strength enhancement and weakening by pentagon-heptagon defects in graphene.

Chlorination of C86 to C84Cl32 with Nonclassical Heptagon‐Containing Fullerene Cage Formed by Cage Shrinkage

Two-dimensional tiling by rubrene molecules self-assembled in supramolecular pentagons, hexagons, and heptagons on a Au111 surface.

同义词：septangle

英语词源：

heptagon (n.)

1560s, from Middle French heptagon, from Greek heptagonon, from hepta "seven" (cognate with Latin septem, Gothic sibun, Old English seofon; see seven) + gonia "angle" (see -gon). Related: Heptagonal.

造句：

1. The trio are part of Sotheby's sale of Works of Art.

该三件套是苏富比艺术品拍卖会上的一件拍品。

来自柯林斯例句

2. a trio for two violins and continuo

两小提琴与通奏低音三重奏

来自《权威词典》

3. a trio for piano, oboe and bassoon

钢琴、双簧管及大管三重奏

来自《权威词典》

4. The violinist walked on the stage and the duo became a trio.

那位小提琴家走上台,二重奏变成了三重奏组.

来自《简明英汉词典》

5. The committee is headed by a trio of ministers.

委员会由三位部长组成的小组领导.

来自《简明英汉词典》

[ trio 造句 ]