rotation
[roʊˈteɪʃn]
n.
旋转，转动;
轮流，循环;
[农]轮作;
[天]自转;
例句:
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Within the project, trees are selectively cut on a 25-year rotation.
按照这个计划，将以25年为一个轮伐期对树木进行有选择的砍伐。
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the diurnal rotation of the earth
地球的周日自转
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the daily rotation of the earth on its axis
地球每天的自转
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New York's rotation was looking fraught coming in.
来自WSJ
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In either case, planetary rotation seems to be common.
来自SA
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Therefore the earth rotation speed is reducing speed.
来自SA