Apedia

Diameter Line Length Straight Passing Noun Circle 直径;对径

The word "diameter" refers to the length of a straight line that crosses through the center of a round object. It can also refer to the magnification power of an optical instrument.

The word "diameter" refers to the length of a straight line passing through the middle of a round object. It can also refer to the magnifying power of an optical instrument.

word diameter
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Collins
diameter ★★☆☆☆
/daɪæ̱mɪtə(r)/
1
[N-COUNT 可数名词]直径;对径 The diameter of a round object is the length of a straight line that can be drawn across it, passing through the middle of it.
  [also in N]
  • ...a tube less than a fifth of the diameter of a human hair.

    直径不足人的头发直径1/5的电子管

  • ...a length of 22-mm diameter steel pipe.

    一段直径为 22 毫米的钢管

  • ...a tiny capsule, between 1 and 3 millimetres in diameter.

    直径在 1到3 毫米之间的微型胶囊


Oxford diam·eter / daɪˈæmɪtə(r) ; NAmE daɪˈæmɪtər / noun _circles_comp.jpg _circles1.jpg 1 a straight line going from one side of a circle or any other round object to the other side, passing through the centre 直径;对径 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。 compare
radius
 (1 )
2 ( technical 术语 ) a measurement of the power of an instrument to magnifysth 放大率;放大倍数 a lens magnifying 300 diameters (= making sth look 300 times larger than it really is) 放大 300 倍的透镜 diameter diameters
diam·eter / daɪˈæmɪtə(r) ; NAmE daɪˈæmɪtər /
LDC
diameterdi‧am‧e‧ter /daɪˈæmɪtə $ -ər/ ●●○ noun [countable]
Word Origin
Examples
word sets
Collocations
a straight line from one side of a circle to the other side, passing through the centre of the circle, or the length of this line3 inches/1 metre etc in diameter Draw a circle six centimetres in diameter.diameter of The diameter of the Earth is about 13,000 km.
WDF

diameter

[daɪˈæmɪtə(r)]

CET4CET6TEM4考研GRETOEFLIELTS
n5311
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NOUN3513
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Spoken:

91471738
直径(100%)
n.直径

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