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单词 rotational
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ro•ta•tion  (rō tāshən),USA pronunciation n. 
  1. the act of rotating;
    a turning around as on an axis.
  2. Astronomy
    • the movement or path of the earth or a heavenly body turning on its axis.
    • one complete turn of such a body.
  3. regularly recurring succession, as of officials.
  4. AgricultureSee crop rotation. 
  5. Mathematics
    • an operation that rotates a geometric figure about a fixed point.
    • curl (def. 17).
  6. Games[Pool.]a game in which the balls are played in order by number.
  7. Sport[Baseball.]See pitching rotation. 
  • Latin rotātiōn- (stem of rotātiō) a rotation, rolling, equivalent. to rotāt(us) (see rotate1) + -iōn- -ion
  • 1545–55
ro•tation•al, adj. 

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