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

• Geodetic theodolites generally have circles of about140mm diameter.
  大地经纬仪的度盘直径一般为140毫米。
• The diameter and the circumference of a circle.
  圆的直径和圆周相关联。
• 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。
• And the volume of the satellite droplets increases with the initial droplet diameter and the impact velocity.
  且卫星液滴的体积随着初始液滴直径和初始撞击速度的增大而增大；
• 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 relationships among perforation diameter, density, phase and casing strength are clarified.
  明确了射孔直径、度及相位等与套管强度的关系。
• 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。
• 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。
• 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。
• Design, construction technology and construction control of construction of tube-in-tube with large diameter are introduced.
  介绍了大直径筒中筒滑模施工的滑模设计、施工工艺和施工控制要点。