rotation

美[roʊ'teɪʃn] 英[rəʊ'teɪʃn]

n. 旋转；循环

形容词：rotational

近义词：revolution，gyration，turning，spin，alternation，variation，wheel，circulation，interchange，replacement，cycle，sequence，rotarymotion，

Noun

the act of rotating as if on an axis;
"the rotation of the dancer kept time with the music"
(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
a single complete turn (axial or orbital);
"the plane made three rotations before it crashed" "the revolution of the earth about the sun takes one year"
a planned recurrent sequence (of crops or personnel etc.);
"crop rotation makes a balanced demand on the fertility of the soil" "the manager had only four starting pitchers in his rotation"

用作名词(n.)

The rotation of the earth round the sun takes one year.地球绕着太阳旋转要一年时间。
Walling under the rotation radius of crane boom is prohibited.吊臂旋转半径下，禁止人行走。
The rotation of the dancer kept time with the music.那个舞者跟随音乐的节拍旋转身体。
The seasons follow each other in rotation.四季循环交替。
The rotation of crops keeps the soil healthy and fertile.谷物轮种使土壤保持了肥力和高质。
The chairmanship of the committee changes in rotation.委员会主席一职是轮流担任的。

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