资料来源 : pyDict

链,悬链线,垂曲线垂曲线的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Catenary \Cat"e*na*ry\, Catenarian \Cat`e*na"ri*an\, a. [L.
   catenarius, fr. catena a chain. See {Chain}.]
   Relating to a chain; like a chain; as, a {catenary} curve.

Catenary \Cat"e*na*ry\, n.; pl. {Catenaries}. (Geol.)
   The curve formed by a rope or chain of uniform density and
   perfect flexibility, hanging freely between two points of
   suspension, not in the same vertical line.

资料来源 : WordNet®

catenary
     n : the curve theoretically assumed by a perfectly flexible and
         inextensible cord of uniform density and cross section
         hanging freely from two fixed points