音标:[da'ɪæmɪtəz] ;
n. 直径( diameter的复数形式 ); 放大率
n. the length of a straight line passing through the center of a circle and connecting two points on the circumference
n. 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)

diameters的用法和样例:

例句

  1. The lengths of all diameters are the same.直径的长度都相等。
  2. Densitometry was used to calculate peak particle diameters.使用密度计去推算粒孚的最大直径。

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗? No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(52) / 评论(0) 分类 与美国小学生一起学英文第9册