英语释义

• 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)

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

片语

diameter series[机] 直径系列

inside diameter[数] 内径

internal diameter内直径

average diameter[数] 平均直径；算术平均径

bore diameter孔径，内径

blade diameter风轮直径

pipe diameter管直径

beam diameter[光] 光束直径；束帘径

ball diameter[机] 球直径

wire diameter线径；焊丝直径

inner diameter内径

diameter ratio直径比；内外径比；直径螺距比

pitch diameter[机] 节圆直径

outer diameter外直径

Speaker Diameter喇叭直径

pore diameter孔径；[材] 孔隙直径

equivalent diameter[地质] 当量直径

major diameter大直径，[机] 外径；螺纹大径，大径

particle diameter粒径；[地质] 颗粒直径，粒子直径

external diameter外径

hole diameter孔直径；刃口直径

biparietal diameter[妇产] 双顶径

nominal diameter[机] 公称直径；[地质] 标称直径

mean diameter[数] 平均直径；中径；二次平均直径

outside diameter外直径

grain diameter粒径，颗粒直径

英汉例句

• circles are drawn in top and bottom halves, from largest diameter to smallest.

  圆形按直径从最大到最小绘制在上半部和下半部。

• this causes the creation of an 「ice tube」, the inner diameter of which slowly constricts until no more water can flow through.

  它产生了一种可称之为「冰管」的东西，内部的直径逐渐缩小最后水流就无法经过，冻住了。

• think about the sun, which is something like 109 times the diameter of the earth—pretty broad!

  以太阳为例，太阳的直径是地球的109倍，它本是一个相当广的光源！

• but it would take a telescope with the effective diameter of the sun to actually take photographs of something the size of an elephant strolling on an exoplanet only 4.3 light-years away.

  但是，假设距离我们仅有4.3光年远的一颗系外行星上，有一头徜徉漫步的大象，我们如果要拍到它，也得使用一个直径有太阳那么大的望远镜。

• at its base is a hole about the diameter of a pencil, kenny said.

  在它的机底上有一个洞眼，直径约与一支铅笔相当。

• but doubling the diameter of the telescope’s mirror, without changing its design, would increase its weight fourfold.

  但是当望远镜镜片直径翻一番时，如果设计不变，其重量会增加四倍。

• atlas, the flatter of the two, has a diameter of only 18 kilometres from pole to pole, but is almost 40 kilometres across its waist.

  阿特拉斯是两者中较平整的一个，从南极点到北极点的直径只有18公里，但是它的赤道周长却有40公里。

• this has enabled designers to continue with the trend of reducing the steering wheel size, with the typical item now being about half the diameter of that of a normal road car.

  这也使得设计师可以进一步延续减少方向盘尺寸的趋势，目前标準的赛车方向盘直径只有普通道路车辆方向盘的一半大小。

• dione, on the right, has less than a quarter of titan「s diameter and has no significant atmosphere.

  土卫四（狄俄涅），右边那颗，直径小于土卫六的四分之一，没有明显的大气层。

• if found in our own solar system its diameter would almost encompass the orbit of jupiter.

  如果把它放到我们的太阳系中，参宿四的直径几乎可以环绕木星轨道一周。

• we got a chance to look closer at the interesting finding… they are approximately of the same size - about one meter in the diameter and in the height as well.

  现在，我们有机会与这个有趣的发现进行近距离的接触……它们都近似于同一型号——直径、高度均有一米左右。

• as if that were not enough of an impact, sunscreens increasingly contain nanoparticles, smaller than one one-thousandth the diameter of a human hair.

  就像是怕以前作用还不够似的，现在防晒霜遮阳剂包含的纳米粒子越来越多，比人类头发直径的千分之一还小。

• last month the washington university surgeons drilled a small burr hole, about the diameter of a pencil, into the patient」s skull.

  上个月华盛顿大学的外科医生用鉆孔器在这个病人的头骨上鉆了一个洞，直径大约和铅笔一样。

相似词

width宽度；广度

thickness厚度；层；浓度；含混不清

inside内侧；里面，内部；内心；（非正式）内脏，肠胃；（非正式）可获得内情的职位

breadth宽度，幅度；宽宏

calibre(Calibre)人名；(法)卡利布尔

diameter直径

相反词

radius(Radius)人名；(意、印尼)拉迪乌斯；(英)雷迪厄斯；(法)拉迪于斯