| 释义 |
ro·ta·tionBrE /rəʊˈteɪʃn/NAmE /roʊˈteɪʃn/ noun [U] the action of an object moving in a circle around a central fixed point 旋转；转动◆the daily rotation of the earth on its axis 地球每天的自转 [C] one complete movement in a circle around a fixed point （旋转的）一周，一圈◆This switch controls the number of rotations per minute. 这个开关控制着每分钟的转数。 [U, C] 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 轮换；交替；换班◆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◆Wheat, maize and sugar beet are planted in rotation. 小麦、玉米和甜菜是轮流种植的。◆The committee is chaired by all the members in rotation. 委员会由所有成员轮流担任主席。▸ ro·ta·tion·al BrE /rəʊˈteɪʃənl/NAmE /roʊˈteɪʃənl/ adjective [only before noun] |