形容词
中文翻译：周的
同义词：
['circular', 'roundabout', 'circumscribed例句：1. The circumferential length of the circle is twice its diameter.（圆的周长是直径的两倍。）']
例句：
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1. The circumferential length of the circle is twice its diameter.
圆的周长是直径的两倍。
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2.The circumferential speed of the train is 80 km/h.
火车的周速度为80公里/小时。
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3. The circumferential stress in the pipe is higher than the radial stress.
管道中的周向应力高于径向应力。