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单词 equator
释义 equator
 /i kway"teuhr/,  n.  
  1. the great circle on a sphere or heavenly body whose plane is perpendicular to the axis, equidistant everywhere from the two poles of the sphere or heavenly body.
  2. the great circle of the earth that is equidistant from the North Pole and South Pole.
  3. a circle separating a surface into two congruent parts.
  4. See celestial equator.
 [1350-1400; ME < ML aequator, L: equalizer (of day and night, as when the sun crosses the equator). See EQUATE, -TOR]
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更新时间:2025/3/21 16:11:51