Tra từ rotation - Từ điển LongMan Dictionary

ro‧ta‧tion/rəʊˈteɪʃən $ roʊ-/ noun
1. [UNCOUNTABLE]
when something turns with a circular movement around a central point
rotation of
　 ▪ the rotation of the Earth on its axis
rotation about/around
　 ▪ the planet’s rotation around the sun

2. [COUNTABLE]
one complete circular turn around a central point SYN revolution:
　 ▪ The blades spin at 100 rotations per minute.

3. [UNCOUNTABLE]
the practice of regularly changing the thing that is being used or done, or the person who does a particular job:
　 ▪ job rotation
in rotation
　 ▪ Three plays will be performed in rotation during the drama festival.

4. [COUNTABLE]
American English a period of time spent doing a particular job, when you will soon change to a different job for the same employer:
　 ▪ a young doctor on a rotation in the children’s ward

5. [COUNTABLE]
American English the people who each take a turn to do a particular job in a regular order:
　 ▪ The rotation included two rookies, Hernandez and Saunders.

—rotational adjective

noun
COLLOCATIONS FROM OTHER ENTRIES
crop rotation (=the practice of rotating crops)
▪ Crop rotation helps build up soil fertility.
crop rotation
the Earth’s rotation
▪ Has the Earth’s rotation always been the same?
COLLOCATIONS FROM CORPUS
ADJECTIVE
axial
▪ Jupiter is therefore appreciably flattened, though this is not surprising in view of its rapid axial rotation.
▪ Therefore their period should be the axial rotation period of the Jovian interior.
▪ The slow, retrograde axial rotation of Venus is a puzzle to which I shall return in section 4.2.
▪ This is because of the rapid axial rotation of Jupiter which yields a powerful Coriolis effect.
NOUN
crop
▪ To these ends, longer and new crop rotations can be introduced.
▪ For example, crop rotation, hand weeding and hoeing.
▪ What crop rotation will suit the farm?
▪ Organic manures as nutrient sources-how best to make the most of organic manures and slurry in arable crop rotations.
▪ Synthetic fertilisers and pesticides are banned and soil fertility and pest control is achieved through crop rotation and mixed farming systems.
▪ Whilst crop rotations are being established and fertility built up, it will probably be necessary to buy in some feeding-stuffs.
▪ Such careful spraying can go hand in hand with long-established techniques such as crop rotation, and planting resistant varieties.
▪ Many farmers are rediscovering the largely abandoned practices of crop rotation and manure spreading.
job
▪ Restructuring work routine may also involve job rotation, variation of tasks, and regular breaks from high-risk activities.
▪ The students also complained about the quality of the job rotations, which did not offer enough chances for hands-on learning.
▪ Instead, management's response to the de-skilling effects of the new technology was to introduce a system of job rotation.
▪ We need to do more cross-training and job rotation.
period
▪ Therefore their period should be the axial rotation period of the Jovian interior.
▪ The measured brightness variations over the rotation period are called the light curve of the asteroid.
▪ The data are plotted in 27-day strips, to highlight those disturbances that recur with the solar rotation period.
▪ We therefore would not even be able to determine its rotation period.
rate
▪ The plot of rotation rates in Fig. 1 a shows the residuals relative to this normal slowdown.
VERB
start
▪ If the starting rotation has five right-handers, there likely will be three left-handers in the bullpen.
▪ Carlos Reyes, working to earn a spot in the starting rotation, has one of the better change-ups in the league.
EXAMPLES FROM OTHER ENTRIES
▪ It takes 243 Earth days for Venus to complete one rotation.
▪ Robinson's first rotation at the hospital was in the emergency room.
▪ the rotation of the Earth
▪ We need to do more cross-training and job rotation.
EXAMPLES FROM CORPUS
▪ A broken jaw to Javier Mejia created an opening in the rotation.
▪ Crop rotations and equipment could not be exploited in some areas until enclosure removed the remaining open fields and increased farm size.
▪ It is emphasized here that there is no rotation in a frame in free fall.
▪ 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.
▪ The measured brightness variations over the rotation period are called the light curve of the asteroid.