circumference中文什么意思

[ sə'kʌmfərəns ]发音:   用"circumference"造句
n.
四周,周围;圆周;圈线;周线。 ten miles in circumference周长十英里。
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例句与用法

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  1. 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。
  2. 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。
  3. Wheel circumference measurements are show in cms
    车轮的周长以厘米为单位度量。
  4. Large waist circumference means excess fat in body
    大腰围显示身体储有过多脂肪
  5. That point falls on the circumference of the circle
    那一个点落在这圆的圆周线上。

英文释义

名词
  1. the size of something as given by the distance around it
    同义词:perimeter
  2. the length of the closed curve of a circle
  3. 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

百科释义

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.
详细百科解释

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