短語(yǔ)詞組短語(yǔ)helical symmetry helical symmetry 螺旋對(duì)稱型Helical symmetry virus 螺旋對(duì)稱病毒helical symmetry ofviral nucleocapsid 病毒核衣殼的螺旋狀對(duì)稱 返回 helical symmetry