| 单词 | Archimedean spiral |
| 释义 | Archimedean /är-ki-mē-dēˈən or -mēˈdi-ən/adjectiveRelating to Archimedes, a celebrated Greek mathematician of Syracuse (c.287–212BC) Archimedean drill noun A drill in which to-and-fro movement of a nut on a helix causes alternating rotary motion of the bit Archimedean screw noun A machine for raising water, etc, in its simplest form a tube bent spirally turning on its axis Archimedean spiral noun The curve described by a point moving uniformly along a uniformly revolving radius vector, its polar equation being r=αθ principle of Archimedes or Archimedes' principle The principle that a body weighed when immersed wholly or partly in a fluid shows a loss of weight equal to the weight of fluid it displaces |
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