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单词 catenary
释义 catenary
 /kat"n er'ee/; esp. Brit. /keuh tee"neuh ree/,  n.  ,  pl.   catenaries,  adj.  
  n.  
  1.  Math.   the curve assumed approximately by a heavy uniform cord or chain hanging freely from two points not in the same vertical line. Equation: y = k cosh(x/k).
  2. (in electric railroads) the cable, running above the track, from which the trolley wire is suspended.
  adj.  
  3. of, pertaining to, or resembling a catenary.
  4. of or pertaining to a chain or linked series.
 [1780-90; < L catenarius relating to a chain, equiv. to caten(a) a chain + -arius -ARY]
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