1.Rotational symmetry in nature is found in everything from the petals of a flower to the topside view of a jellyfish.
在自然界中,从花瓣到水母的顶部视角图,随处可以发现转动对称的存在。
3.The number of stems with glossy top cutting surface ( X ) was in highly significant correlation with topside bud length ( Y) .
参试材料的上切口平滑枝数(X)与顶侧芽长度(Y)均呈极显著相关关系。