| 释义 | 
		Definition of rotational in English: rotationaladjective rə(ʊ)ˈteɪʃ(ə)n(ə)lroʊˈteɪʃ(ə)n(ə)l 1Using or relating to a circular movement about an axis or centre.  the increased rotational speed of today's disc drives Example sentencesExamples -  He uses the linear throwing technique rather than the rotational method, performed consistently throughout the final.
 -  Exercises using medicine balls allow you to do many rotational movements that are often difficult when using traditional strength-training equipment.
 -  When the regulator detects low air pressure, air is transferred from the sealed-off axles to the low tyre through a small rotational part on the axle.
 -  The rotational action of the obliques is very important in turning the shoulders, which is vital in gymnastics, diving, wrestling, and the martial arts.
 -  The tyres' bigger gyroscope boosts rotational inertia on moderate uphills, flats, and downhills.
 -  The high rotational axis and forward-mounted hinge provide excellent stability, especially when cornering.
 -  Designing the hitch extension for rotational forces reduced the travel mechanism's price tag by a couple of million dollars.
 -  The greater the torque, the more rotational power the blade has.
 -  Using moves that involve twisting the waist can build the kind of rotational strength your abdominals need to shape up and stay more functional.
 -  Look for rotational control of the mouse.
 
 - 1.1Mathematics  Relating to the conceptual operation of turning a system about an axis.
Example sentencesExamples -  He considered the Euler angles and studied rotational problems which were motivated by the problem of the precession of the equinoxes.
 -  In this case, V is vertical symmetry, E is equilibrium, R is rotational symmetry, and HV is the relation of the polygon to a horizontal-vertical network.
 -  The symmetry group of the Kepler problem is the three-dimensional rotational group SO.
 -  In 1765, Euler decomposed the motion of a solid into a rectilinear motion and a rotational motion.
 -  A specific difference is made in classical mechanics between parallel motion and rotational motion.
 
  
 2Relating to or denoting a system in which privilege or responsibility is passed to each member of a group in a regularly recurring order.  reward all selected students on a rotational basis Example sentencesExamples -  If adequate relief is not provided by these restrictions, then rotational daytime power cuts would be imposed on residential areas.
 -  The restoration project has seen vast areas of the park put back into a rotational system of management.
 -  It will be constitutionally comfortable for the next administration to deliberate on the issue of a regional rotational process.
 -  The break-up of the confederacy followed a row between the two countries over the question of rotational leadership of the confederation.
 -  It is commonplace to see new MBAs hired into rotational management programmes designed to groom future leaders.
 -  She and nine other women join together and borrow 20,000 rupees, which they split amongst themselves using a rotational method.
 -  The company moved its Bailey's Irish Cream flavour from year-round availability to rotational status.
 -  Develop your career and participate in two or three rotational positions over three years.
 -  We are in favour of a rotational presidency and for an opportunity for each country to participate actively in EU foreign policy.
 -  The UK shares rotational command of this division with Canada and the Netherlands.
 
 - 2.1 Relating to or denoting a system of grazing in which animals are grazed successively on different areas of land.
 rotational grazing improves production Example sentencesExamples -  Riparian fencing allows dormant-season rotational livestock grazing.
 -  Short-duration rotational grazing with heavy grazing pressure results in the best use and greatest animal gains per acre.
 -  I visit a research farm where new legumes and rotational grazing are being introduced and gains are recorded by electronic ID tags in intact bulls.
 -  Perennial ryegrass tolerates continuous grazing if a two-inch stubble is maintained, but rotational grazing improves production.
 -  Tour a certified organic farm that integrates a rotational strip cropping system and examine a sustainable and highly efficient rotational grazing system.
 -  Making two seedings about three weeks apart staggers the maturities and makes rotational grazing or harvest timing easier to manage.
 -  The two grazing methods evaluated were continuous and rotational stocking.
 -  He evaluated rotational stocking, in which large numbers of cattle were moved through a series of small paddocks at short intervals to prevent overgrazing.
 -  Lax rotational grazing systems are those having less than seven paddocks with a grazing period of one to two weeks.
 -  They are testing a system called management-intensive, or rotational, dairy grazing.
 
  
    Definition of rotational in US English: rotationaladjectiverōˈtāSH(ə)n(ə)lroʊˈteɪʃ(ə)n(ə)l 1Using or relating to a circular movement about an axis or center.  the increased rotational speed of today's disk drives Example sentencesExamples -  The rotational action of the obliques is very important in turning the shoulders, which is vital in gymnastics, diving, wrestling, and the martial arts.
 -  The high rotational axis and forward-mounted hinge provide excellent stability, especially when cornering.
 -  Designing the hitch extension for rotational forces reduced the travel mechanism's price tag by a couple of million dollars.
 -  When the regulator detects low air pressure, air is transferred from the sealed-off axles to the low tyre through a small rotational part on the axle.
 -  Look for rotational control of the mouse.
 -  The tyres' bigger gyroscope boosts rotational inertia on moderate uphills, flats, and downhills.
 -  The greater the torque, the more rotational power the blade has.
 -  Using moves that involve twisting the waist can build the kind of rotational strength your abdominals need to shape up and stay more functional.
 -  Exercises using medicine balls allow you to do many rotational movements that are often difficult when using traditional strength-training equipment.
 -  He uses the linear throwing technique rather than the rotational method, performed consistently throughout the final.
 
 - 1.1Mathematics  Relating to the conceptual operation of turning a system about an axis.
Example sentencesExamples -  A specific difference is made in classical mechanics between parallel motion and rotational motion.
 -  In 1765, Euler decomposed the motion of a solid into a rectilinear motion and a rotational motion.
 -  The symmetry group of the Kepler problem is the three-dimensional rotational group SO.
 -  He considered the Euler angles and studied rotational problems which were motivated by the problem of the precession of the equinoxes.
 -  In this case, V is vertical symmetry, E is equilibrium, R is rotational symmetry, and HV is the relation of the polygon to a horizontal-vertical network.
 
  
 2Relating to or denoting a system in which privilege or responsibility is passed to each member of a group in a regularly recurring order.  reward all selected students on a rotational basis Example sentencesExamples -  If adequate relief is not provided by these restrictions, then rotational daytime power cuts would be imposed on residential areas.
 -  The break-up of the confederacy followed a row between the two countries over the question of rotational leadership of the confederation.
 -  We are in favour of a rotational presidency and for an opportunity for each country to participate actively in EU foreign policy.
 -  She and nine other women join together and borrow 20,000 rupees, which they split amongst themselves using a rotational method.
 -  The UK shares rotational command of this division with Canada and the Netherlands.
 -  Develop your career and participate in two or three rotational positions over three years.
 -  The restoration project has seen vast areas of the park put back into a rotational system of management.
 -  The company moved its Bailey's Irish Cream flavour from year-round availability to rotational status.
 -  It is commonplace to see new MBAs hired into rotational management programmes designed to groom future leaders.
 -  It will be constitutionally comfortable for the next administration to deliberate on the issue of a regional rotational process.
 
 - 2.1 Relating to or denoting a system of grazing in which animals are grazed successively on different areas of land.
 rotational grazing improves production Example sentencesExamples -  Lax rotational grazing systems are those having less than seven paddocks with a grazing period of one to two weeks.
 -  He evaluated rotational stocking, in which large numbers of cattle were moved through a series of small paddocks at short intervals to prevent overgrazing.
 -  Riparian fencing allows dormant-season rotational livestock grazing.
 -  They are testing a system called management-intensive, or rotational, dairy grazing.
 -  I visit a research farm where new legumes and rotational grazing are being introduced and gains are recorded by electronic ID tags in intact bulls.
 -  Making two seedings about three weeks apart staggers the maturities and makes rotational grazing or harvest timing easier to manage.
 -  Perennial ryegrass tolerates continuous grazing if a two-inch stubble is maintained, but rotational grazing improves production.
 -  The two grazing methods evaluated were continuous and rotational stocking.
 -  Short-duration rotational grazing with heavy grazing pressure results in the best use and greatest animal gains per acre.
 -  Tour a certified organic farm that integrates a rotational strip cropping system and examine a sustainable and highly efficient rotational grazing system.
 
  
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