| 1. | The axis of a circle is its diameter . |
| 圆的轴线是其直径。
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| 2. | The circle has a diameter of three inches. |
| 这个圆直径为3英寸。
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| 3. | He measured the diameter of this artery. |
| 他量了这根动脉的直径。
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| 4. | It measures 3 ft. in diameter . |
| 它的直径为3英尺。
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| 5. | The diameter of the earth is about 7,926 miles. |
| 地球的直径约为7926英里。
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| 6. | The holes are only borings, less than a foot in diameter . |
| 这些洞只不过是一些钻孔，直径不到1英尺。
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| 7. | Particulate matter includes particles from molecular size to greater than 10Mm in diameter . |
| 微粒物质包括从分子大小到直径大于10毫米的粒子。
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| 8. | The pipe is six inches in diameter . |
| 这根管子直径6英寸。
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| 9. | three feet in length, depth, diameter , etc |
| 长度, 深度, 直径
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| 10. | precision instruments which can gauge the diameter to a fraction of a millimetre |
| 可测出直径几分之一毫米的精密仪器
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