n.
a plane curve traced by a point circling about the center but at increasing distances from the center
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
同义词：helix
ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center
同义词：volute
a structure consisting of something wound in a continuous series of loops
同义词：coilvolutewhorlhelix
flying downward in a helical path with a large radius
Learning to Tell Two Spirals Apart
Learning to Tell Two Spirals Apart
Spirals of Silence: The Dynamic Effects of Diversity on Organizational Voice
Dnm1 forms spirals that are structurally tailored to fit mitochondria.
Positive emotions trigger upward spirals toward emotional well-being
Stem cells: attributes, cycles, spirals, pitfalls and uncertainties. Lessons for and from the crypt.
A General Theory of Turbulence-Regulated Star Formation, From Spirals to ULIRGs
A General Theory of Turbulence-regulated Star Formation, from Spirals to Ultraluminous Infrared Galaxies
Potten CS, Loeffler MStem cells: attributes, cycles, spirals, pitfalls and uncertainties. Development 110:1001-1020
Spatiotemporal concentration patterns in a surface reaction: Propagating and standing waves, rotating spirals, and turbulence
