[kua4 du4] /span/horizontal distance between vertical supports/
  [kua4 du4] /Mastabstand (u.E.) (S)/Spannweite (u.E.) (S)/umfassen (u.E.) (V)/
  [kua4 du4] /portée/travée/
Visszatérés a(z) „跨度” laphoz.