diameter

英 [daɪˈæmɪtə(r)]

美 [daɪˈæmɪtər]

n.  直径; 对径; 放大率; 放大倍数

复数：diameters　

CET4CET6考研TOEFLIELTSGRETEM4TEM8医学

Collins.2 / BNC.4613 / COCA.5253

牛津词典

noun

• 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
  1. the diameter of a tree trunk
     树干的直径
  2. The dome is 42.3 metres in diameter .
     这个穹顶直径为42.3米。
• 放大率；放大倍数
  a measurement of the power of an instrument to magnify sth
  1. a lens magnifying 300 diameters (= making sth look 300 times larger than it really is)
     放大 300 倍的透镜

柯林斯词典

• N-COUNT 直径;对径
  Thediameterof a round object is the length of a straight line that can be drawn across it, passing through the middle of it.
  1. ...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
  2. ...a length of 22-mm diameter steel pipe.
     一段直径为 22 毫米的钢管
  3. ...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

英英释义

noun

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

双语例句

• An experiment investigation on flow resistance of inertial separation of small diameter water drops;
  分析了水滴的惯性分离机理以及各个因素对分离效率和流动阻力的影响。
• Teacher: What's the relationship between the radius and the diameter of the same circle?
  师：直径的长度和半径有什么关系？
• Geodetic theodolites generally have circles of about140mm diameter.
  大地经纬仪的度盘直径一般为140毫米。
• This last error depends on the wire spacing and diameter.
  后者引起的误差取决于导线的距离和直径。
• The diameter of a circle must go through the center.
  圆的直径必相交于圆心。
• The minimum and maximum girdle diameters are determined by taking a number of diameter measurements.
  最低纲领与最高束腰直径决意采取了若干直径测量。
• Required cure time depends on temperature, pipe diameter, and pressure application.
  所需要的固化时间与温度、管道直径和应用压力有关。
• The diameter and the circumference of a circle.
  圆的直径和圆周相关联。
• The effect of liquid jet diameter on performance of two-fluid airblast atomizer was investigated in a water-air system.
  采用水-空气系统，研究了液体射流直径对双通道气流式喷嘴雾化性能的影响。
• The circle has a diameter of6 inches.
  这个圆直径六英寸。