| 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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