rotation
UK [rəʊ'teɪ.ʃən] US [roʊ-] noun
uncountable
■when something moves in a circle around a fixed point （尤指围绕一个固定点）（使）旋转，（使）转动•the speed of rotation转速 countable
■a complete circular movement around a fixed point 旋转•The Earth completes 366 rotations about its axis in every leap year.在每一个闰年里，地球绕地轴自转366圈。 countable or uncountable
■when farmers regularly change which crops they grow in a field 轮作；轮耕（农民有规律地改变田里种植的农作物）•crop rotation轮作；轮耕；轮植 uncountable
■when different people do the same job at different times 轮班（不同的人在不同的时间做相同的工作）•the rotation of key positions such as that of chairman轮值（重要职务如主席等的轮流担任）
UK [rəʊ'teɪ.ʃən] US [roʊ-] noun
in rotation
■one after the other, in a regular order 轮换，轮流，交替•There are ten employees and they do the various jobs in rotation.有十名员工，他们轮流做各种工作。 |