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TOEFL BNC: 6205 COCA: 5230

rotation

Word family 
Related topics: Measurement, Geography
ro·ta·tion /rəʊˈteɪʃən $ roʊ-/ ●○○ noun  
1  [uncountableU]TURN when something turns with a circular movement around a central point 旋转
rotation of
 the rotation of the Earth on its axis
地球绕地轴的自转
rotation about/around
 the planet’s rotation around the Sun
行星围绕太阳的公转
2  [countableC]TMTURN one complete circular turn around a central point 〔旋转的〕一周，一圈 SYN revolution
 The blades spin at 100 rotations per minute.
叶片每分钟转100圈。
3  [uncountableU]CHANGE FROM ONE THING TO ANOTHER the practice of regularly changing the thing that is being used or done, or the person who does a particular job 轮换，交替
 job rotation
工作的轮换
in rotation
 Three plays will be performed in rotation during the drama festival.
戏剧节期间将有三个剧目轮流上演。
4  [countableC] American EnglishAmE a period of time spent doing a particular job, when you will soon change to a different job for the same employer 轮岗，换岗
 a young doctor on a rotation in the children’s ward
轮岗到儿童病房的一名年轻医生
5  [countableC] American EnglishAmE the people who each take a turn to do a particular job in a regular order 轮岗的人
 The rotation included two rookies, Hernandez and Saunders.
轮岗的人中有两个新手——埃尔南德斯和桑德斯。
—rotational adjectiveadj
Examples from the Corpus
rotation• Crop rotations and equipment could not be exploited in some areas until enclosure removed the remaining open fields and increased farm size.• Robinson's first rotation at the hospital was in the emergency room.• We need to do more cross-training and job rotation.• It is emphasized here that there is no rotation in a frame in free fall.• It takes 243 Earth days for Venus to complete one rotation.• Still, Leyland left him out of the postseason rotation because there was nobody else to work right-handed long relief.• The Earth's rotation adds to the confusion.• A broken jaw to Javier Mejia created an opening in the rotation.• The measured brightness variations over the rotation period are called the light curve of the asteroid.• the rotation of the Earth
rotation about/around• That means the inner core makes a complete eastward rotation about two-thirds of a second faster than the rest of the planet.• Even in this case we can consider the translation to be a special case of rotation about a centre infinitely far away.• There are three pairs of semicircular canals, which signal rotations around three axes at right angles to each other.• Discuss whether the planet is in synchronous rotation around the Sun.• Indeed, Mercury is in a form of synchronous rotation around the Sun.• These arise when bulky pendant groups hinder the rotation about the backbone and cause T g to increase.
in rotation• Employees shall be assigned to cases in rotation.• Three Shakespearean comedies will be performed in rotation during the festival.
From Longman Business Dictionary
rotationro·ta·tion /rəʊˈteɪʃənroʊ-/ noun
1by/in rotation if a group of people do something in rotation, they do it one after the other in a regular order
The four were Area Board chairmen, serving in rotation.
2[countableC, uncountableU] the practice of changing regularly from one thing to another, or regularly changing the person who does a particular job
There are opportunities for job rotation throughout the team.
ro·ta·tion noun
Chinese
Syllable
Corpus
TOEFL BNC: 6205 COCA: 5230
TOEFL BNC: 6205 COCA: 5230
TOEFL BNC: 6205 COCA: 5230
rotation
Circular and turning movements and about-turns: turn, spin, swirl...
The process of replacing or being replaced: replacement, substitution, change...
Crop farming: arable, broadacre, cash crop...

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