diameter

单词音标

diameter音标[dai\'æmitә]

汉语翻译

n. 直径

【医】 直经, 径

词型变化

形容词:diametral

英语解释

名词 diameter:

the length of a straight line passing through the center of a circle and connecting two points on the circumference

同义词：diam

a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)

例句

The axis of a circle is its diameter.

圆的轴线是其直径。

We must gauge the diameter of wire first.

我们必须先测量电线的直径。

The diameter of the tree-trunk is about 2 meters.

这树干的直径大约是2米。

This lens can magnify 20 diameter.

这个透镜能放大20倍。

详细解释

di.am.e.ter

n.（名词）

Abbr. dia.,diam.Mathematics

缩写 dia.,diam.【数学】

A straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the periphery.

直径：穿过一图形，特别是圆形或球形的中心到圆周结束的直线段

The length of such a segment.

直径长：这样一段的长度

Thickness or width.

厚度或宽度

来源：

Middle English diametre

中古英语 diametre

from Old French

源自 古法语

from Latin diametrus

源自 拉丁语 diametrus

from Greek diametros

源自 希腊语 diametros

dia- [dia-]

dia- [前缀，表.完全的，有始有终的.]

metron [measure] * see mô- 2

metron [测量] *参见 mô- 2

【引伸】

diam.etral