| 1. | The column measures two feet around .
这根柱子周长2英尺。 |
| 2. | The circle has greater area than a regular poiygon of the same perimeter .
圆的面积比同样周长的正多边形的面积大。 |
| 3. | The circle has greater area than a regular polygon of the same perimeter .
圆的面积比同样周长的正多边形的面积大。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | The thickness of the bark and girth of the tree can influence the shape and nature of galleries and chambers .
不过树皮厚度和树的周长都会影响到虫道和蛹宝的形状与特征。 |
| 8. | Wheel circumference measurements are show in cms
车轮的周长以厘米为单位度量。 |
| 9. | The earth ' s circumference is more than 40000 kilometres
地球的周长为四万多公里。 |
| 10. | Work out how long the perimeter of the playground
请你算一算体育场的周长是多少米？ |
