rotation

英 [rəʊˈteɪʃn]

美 [roʊˈteɪʃn]

n.  旋转; 转动; (旋转的)一周，一圈; 轮换; 交替; 换班

复数：rotations　

CET4CET6TOEFLTEM4计算机

BNC.6205 / COCA.5230

牛津词典

noun

• 旋转；转动
  the action of an object moving in a circle around a central fixed point
  1. the daily rotation of the earth on its axis
     地球每天的自转
• （旋转的）一周，一圈
  one complete movement in a circle around a fixed point
  1. This switch controls the number of rotations per minute.
     这个开关控制着每分钟的转数。
• 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
  1. 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
  2. Wheat, maize and sugar beet are planted in rotation .
     小麦、玉米和甜菜是轮流种植的。
  3. The committee is chaired by all the members in rotation .
     委员会由所有成员轮流主持。

柯林斯词典

• N-VAR 旋转;转动
  Rotationis circular movement. Arotationis the movement of something through one complete circle.
  1. ...the daily rotation of the earth upon its axis.
     地球每天绕地轴自转
• N-UNCOUNT 轮流;轮班
  Therotationof 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 somethingin rotation, they take turns to do it.
  1. He grew a different crop on the same field five years in a row, what researchers call crop rotation...
     他连续5年在同一块地里种植不同的作物，研究人员称之为轮作。
  2. Once a month we met for the whole day, and in rotation each one led the group.
     我们每个月聚在一起一整天，轮流担任领队。

英英释义

noun

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

双语例句

• It's not so different for rotation.
  所以对转动来说也没什么不同。
• Untimed rotors rely on precision and accuracy of the screw forms for proper mesh and transmission of rotation.
  时序的转子依靠精确和适当网格和旋转的螺旋形式传输的准确性。
• Or the limiting displacement bar is positioned in the axial direction and is in rotation connection with the body.
  所述限位杆包括固定连接在主体上的限位杆本体和轴向被定位的与本体转动连接的防磨头。
• Creates a translation, rotation and scaling matrix.
  创建一个平移、旋转和缩放矩阵。
• This modifies both the position and the rotation of the transform.
  这个修改变换的位置和旋转角度。
• This paper studies the vibration stability of rectangular shaft on variable rotation.
  本文研究了扁平轴变速回转时的振动稳定性问题。
• It controls spindle motor rotation and heads movements.
  它控制主轴马达转动和磁头运动。
• The model offers a reasonable explanation for the flatness of the rotation curves of galaxies.
  本模型给星系旋转曲线的平坦性提供了合理的解释。
• The workers in this workshop do day and night shifts in weekly rotation.
  这个车间的工人上白班和上夜班每周轮换一次。
• You can specify the day ( s), time, and rotation schedule for the backup.
  您可以为备份指定天，时间和循环计划。