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 mass ablative rate of the composite increases when the laser intensity and spot diameter are increased.
  而该复合材料的质量烧蚀率随入射激光强度和光斑直径的增大而增大。
• Geodetic theodolites generally have circles of about140mm diameter.
  大地经纬仪的度盘直径一般为140毫米。
• 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。
• The serial catalyst is characterized by large pore volume and pore diameter, high activity and stability.
  该系列催化剂的主要特点是大孔容、孔径、性和稳定性高。
• The plant height, stem diameter, length and width of maximum leaf increased.
  外观上表现为株高、茎粗、最大叶长和最大叶宽等都有一定程度的增加。
• The circle has a diameter of6 inches.
  这个圆直径六英寸。
• 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？
• 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 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 diameter and the circumference of a circle.
  圆的直径和圆周相关联。