In the past, Thinnet coaxial cable with an outside diameter of only 0.35 cm was used in Ethernet networks.
在过去,外围直径仅0.35公分的细同轴电缆被用在乙太网路。
英语百科
List of gear nomenclature
(重定向自Outside diameter)
The addendum is the height by which a tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line; also, the radial distance between the pitch diameter and the outside diameter.