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decagonal adj.十角形的。

decagram

Z . zhang and w . geng , “ direct observation of misfit dislocations at the interface between a decagonal quasicrystal and its epitaxial crystalline layers “ , phil . mag . lett . , 65 ( 1992 ) 211 - 218 “十面體準晶與其表面晶體之間界面失配位錯的直接觀察” , , (英國)