1.  external diameter
2.  OD ( outer diameter )

• 1. 外径: outside diameter | outer diameter | external diameter | major diameter
• 2. 轴承外径: bearing outside diameter
• 3. 外径千分尺: outside micrometer | external micrometer | outside diameter micrometer | Micrometer

更多释义

• 1.女子室外径赛运动队已经七次夺冠。
  The girls' outdoor track team has grabbed the brass ring seven times.
  dict.yoduao.com
• 2.记录好所有（入井工具）内外径。
  Record all outside and inside diameters.
  dict.yoduao.com
• 3.她朝我的外径踢了一脚。
  She aimed a kick at my shins.
  dict.yoduao.com

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