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rotation

US [roʊˈteɪʃ(ə)n]
UK [rəʊˈteɪʃ(ə)n]
  • n.旋转;转动;轮换;交替
  • Web自转;旋转角度;循环
Plural Form:rotations  
rotation
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n.
1.
[u]
旋转;转动the action of an object moving in a circle around a central fixed point
the daily rotation of the earth on its axis
地球每天的自转
2.
[c]
(旋转的)一周,一圈one complete movement in a circle around a fixed point
This switch controls the number of rotations per minute.
这个开关控制着每分钟的转数。
3.
[u][c]
轮换;交替;换班the act of regularly changing the thing that is being used in a particular situation, or of changing the person who does a particular job
crop rotation/the rotation of crops(= changing the crop that is grown on an area of land in order to protect the soil)
庄稼的轮作
Wheat, maize and sugar beet are planted in rotation .
小麦、玉米和甜菜是轮流种植的。
The committee is chaired by all the members in rotation .
委员会由所有成员轮流主持。

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