| Gb | Eng |
|---|
| 圆的轴线是其直径. | The axis of a circle is its diameter. |
| 我们必须先测量电线的直径。 | We must gauge the diameter of wire first. |
| 极距；两极的直径 | Polar distance; polar diameter. |
| 水晶石石英断片，直径4到64毫米（0。16到2。51英寸），尤指天然圆形的石英颗粒 | A rock fragment between4 and64 millimeters(0.16 and2.51 inches) in diameter, especially one that has been naturally rounded. |
| 密耳长度单位，等于一英寸的千分之一（10－3）（0。0254毫米），如用来标明电线的直径或按页出售的材料的厚度 | A unit of length equal to one thousandth(10-3) of an inch(0.0254 millimeter), used, for example, to specify the diameter of wire or the thickness of materials sold in sheets. |
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