- outside diameter of thread
- 螺纹: screw thread; flight; helica ...
- 外: outside; external side
- 直径: diameter; diam
- 外直径: external conjugate ciameter; external diameter; od; outer diameter; outside diameter; overall diameter
- 螺纹外径: external diameter of thread; full diameter of thread; major diameter of screw thread; major diameter of thread; outside diameter of thread
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