直徑 angolul

caliber [calibers]▼(diameter of round or cylindrical body, as of a bullet, projectile or column)
noun
[UK: ˈkæ.lə.bə(r)] [US: ˈkæ.lə.bər]

diameter [diameters]▼(line)
noun
[UK: daɪ.ˈæ.mɪ.tə(r)] [US: daˈjæ.mə.tər]