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Tetraspaston

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

Tetraspaston \Tet`ra*spas"ton\, n. [NL., fr. Gr. te`tra- (see
   {Tetra-}) + ? to draw, pull.] (Mach.)
   A machine in which four pulleys act together. --Brande & C.
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