"the rotation of the dancer kept time with the music"
同义词： rotary motion
"the plane made three rotations before it crashed"
同义词： revolution gyration
"crop rotation makes a balanced demand on the fertility of the soil"; "the manager had only four starting pitchers in his rotation"
以上来源于: WordNet
N-VAR Rotation is circular movement. A rotation is the movement of something through one complete circle. 旋转; 转动
...the daily rotation of the earth upon its axis.
…地球围绕地轴的每日自转。
N-UNCOUNT The rotation of a group of things or people is the fact of them taking turns to do a particular job or serve a particular purpose. If people do something in rotation, they take turns to do it. 轮流
He grew a different crop on the same field five years in a row, what researchers call crop rotation.
他连续5年在同一块地上轮流种植不同作物，研究人员称之为轮作。
This switch controls the number of rotations per minute.
这个开关控制着每分钟的转数。
Some movements involving primarily vertical or horizontal motions of the body as a whole, in which rotations can be ignored, can be studied using simple equations of linear motion in three dimensions.
有些运动主要涉及整体的垂直或水平运动，其中转动可以忽略，可以用三维线性运动的简单方程来研究。
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