diameter

漢語翻譯

詞型變化：

英文解釋：

名詞 diameter:

1. the length of a straight line passing through the center of a circle and connecting two points on the circumference
   同義詞：diam
2. 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)

例句：

1. The axis of a circle is its diameter.
   圓的軸線是其直徑。
2. We must gauge the diameter of wire first.
   我們必須先測量電線的直徑。
3. The diameter of the tree-trunk is about 2 meters.
   這樹幹的直徑大約是2米。
4. This lens can magnify 20 diameter.
   這個透鏡能放大20倍。