0 Old HSK word(s):


Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.


Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Fermat-Spirale, parabolische Spirale (S, Math) [fei4 ma3 luo2 xian4] 费马螺线