单词 | rotation |
释义 | ro·ta·tion ![]() n. 1. a. The act or process of turning around a center or an axis: the axial rotation of the earth. b. A single complete cycle of such motion. 2. Mathematics A transformation of a coordinate system in which the new axes have a specified angular displacement from their original position while the origin remains fixed. 3. Regular and uniform variation in a sequence or series: a rotation of personnel; crop rotation. 4. Baseball a. The sequence in which the starting pitchers on a team pitch in games. b. The pitchers used in such a sequence: a team with an excellent rotation. ro·tation·al adj. |
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