文摘:螺旋形,螺旋形,螺旋形设计元件.卷曲，旋转的形状。Volute, vortex, helix element stock vector illustration, clip-art graphics 文摘:螺旋形,螺旋形,螺旋形设计元件.卷曲，旋转的形状。Volute, vortex, helix element stock vector illustration, clip-art graphics