diameter

中文意思

• n. 直径
• n. 放大率

英文释义

• 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)

词形变化

复数

diameters

例句

1. n. 直径

   The trunk of this ancient tree measures more than two meters in diameter.

   这棵古树的树干直径测量出来有两米多。

2. n. 放大率

   The lens provides a magnification of ten diameters, making tiny insects clearly visible.

   该镜头提供十倍的放大率，能让微小的昆虫清晰可见。