diameter

音标[dai'æmitә] 读音

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:

  1. the length of a straight line passing through the center of a circle and connecting two points on the circumference
    同义词:diam
  2. 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:

  1. The axis of a circle is its diameter.
    圆的轴线是其直径。
  2. We must gauge the diameter of wire first.
    我们必须先测量电线的直径。
  3. The diameter of the tree-trunk is about 2 meters.
    这树干的直径大约是2米。
  4. 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


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