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circumference是什么意思

  作者:恒星英语学习网     所属分类:C开头的英语单词     

circumference 是什么意思

音标:[ sə'kʌmfərəns ]  
名词复数:circumferences   

中文翻译与英英解释

n.
四周,周围;圆周;圈线;周线。 ten miles in circumference周长十英里。
the size of something as given by the distance around it
同义词:perimeter,

the length of the closed curve of a circle

the boundary line encompassing an area or object; "he had walked the full circumference of his land"; "a danger to all races over the whole circumference of the globe"
同义词:circuit,

Circumference is the linear distance around the outside of a closed curve or circular object. The circumference of a circle is of special importance to geometric and trigonometric concepts.

例句与用法

1.The earth 's circumference is nearly 25,000 miles .
地球的圆周约为25000英里。

2.The diameter and the circumference of a circle correlate .
圆的直径与圆周互相关联。

3.The compressor-outlet pressure is nearly constant around the circumference .
压气机出口压力沿圆周方向接近于常数。

4.Head and chest circumference are checked on all children under two years of age .
两岁以下的婴儿都应测量头围和胸围。

5.In each case an integral number of wavelengths fit into the circumference of the loop .
在各种情形下,环的周长都等于波长的整数倍。

6.the circumference of the circle is 2πr and the time for one revolution is 2πr/v.
圆的周长是2r,转一圈的时间是2rv。

7.The best of the early measurements of the earth's circumference was made by eratosthenes .
早期测量地球周长的最准确结果是由埃拉托斯特尼得出的。

8.Wheel circumference measurements are show in cms
车轮的周长以厘米为单位度量。

9.Large waist circumference means excess fat in body
大腰围显示身体储有过多脂肪

10.That point falls on the circumference of the circle
那一个点落在这圆的圆周线上。

 
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