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

• The result gave the optimal filter particle diameter, layer thickness and filtration velocity.
  根据实验结果，确定了最佳的过滤介质粒径、过滤层厚度和过滤速度。
• This hole was a scant. 23 inches in diameter
  这个洞眼的直径只有0.23英寸。
• Thus the gas flow rate, nozzle inner and outer diameter are important influential factors on bubble size.
  气体流量和管口内外径都是影响气泡尺寸的重要因素；
• Finally, the effect of the diameter on the cohesion and internal friction angle of coal samples is investigated.
  最后讨论了直径对煤样黏聚力和内摩擦角的影响。
• Where: Pitch and Diameter are in inches.
  其中：沥青和直径是英寸。
• Remember, we are THE source for Large Diameter Pipe, Heavy Walls and X-Grades.
  请记住，我们的大口径钢管，重墙和X级的源。
• 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。
• He measured the diameter of the artery.
  他测量了动脉的直径。
• The diameter of a circle must go through the center.
  圆的直径必相交于圆心。
• The average grain diameter and cumulative relative curve of red sandstone are obtained by the grain size analysis.
  对红砂岩进行粒度分析，得出其平均粒径和概率累计曲线。