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单词 helicometry
释义 helicometry Geom.|hɛlɪˈkɒmɪtrɪ|
[f. helico-, comb. form of Gr. ἕλιξ helix + -metry.]
The measurement of spirals.
1706Phillips (ed. Kersey), Helicometry, or Helicosophy, a Mathematical Art, which teaches how to measure or draw all Spiral Lines upon a Plain, and shews their respective Properties.1811Encycl. Londin. s.v.
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