diameter

美 [daɪˈæmətər]
英 [daɪˈæmɪtə(r)]
  • n.直径;对径;放大率;放大倍数
  • 网络外径;最大直径;完成外径
复数:diameters  
diameter
n.
1.
直径;对径a straight line going from one side of a circle or any other round object to the other side, passing through the centre
the diameter of a tree trunk
树干的直径
The dome is 42.3 metres in diameter .
这个穹顶直径为 42.3 米。
2.
放大率;放大倍数a measurement of the power of an instrument to magnify sth
a lens magnifying 300 diameters(= making sth look 300 times larger than it really is)
放大 300 倍的透镜

例句

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