Heptagon Spread七芒星展开法
Heptagon Records出版者
heptagon ĥ七边形
Irregular Heptagon不规则七边形
heptagon copper wire七边形铜线
hepta- seven heptagon七角形
Pentagon-Heptagon Defects五元环
The calculated results show that C_s-C_(58)H_(18) with a heptagon is much more stable than 102 classical C_(58)H_(18), furthermore, some active carbon atoms at the fused pentagons do not bond to H atom in the two non-classical structures.
计算结果显示,2个含七边形的非经典富勒烯氢化物比经典富勒烯氢化物C_(58)H_(18)更稳定,在这两个非经典结构中,部分活性位点并没有键连上氢原子。
参考来源 - 非经典富勒烯及其衍生物的计算研究N（名词） a polygon having seven sides 七边形