名词
中文翻译：圆周测量
同义词：
['circumference', 'circumscribed', 'circumscribed measurement']
例句：
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1. The engineerused a circular measure to calculate the diameter of the pipe.
工程师使用圆周率来计算管道的直径。
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2. The circle's radius is equal to its circumference.
这个圆的半径等于它的周长。
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3.The circumference of the circle is twice the length of its diameter.
圆的周长是直径长度的两倍。