| 单词 | heptagon | 
| 释义 | heptagon听听怎么读 
                            英 [?hept?g?n]
                         
                            美 [?hept?gɑn]
                         是什么意思 七角形,七边形; 英英释义heptagon[ 'hept?ɡ?n ]
 学习怎么用 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 growthStability of dislocation defect with two pentagon-heptagon pairs in grapheneA Symbol of Uniqueness: The Cluster Bootstrap for the 3-Loop MHV HeptagonStructural and electronic properties of pentagon-heptagon pair defects in carbon nanotubes.The nature of strength enhancement and weakening by pentagon-heptagon defects in grapheneThe 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 ShrinkageTwo-dimensional tiling by rubrene molecules self-assembled in supramolecular pentagons, hexagons, and heptagons on a Au111 surface. | 
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