A bundle segment is a subdivision of geometrical bundle. Bundle segment route may be defined by electrical flexible curve ( computed under geometrical and physical constraints ). Managed by CATIEhiBundleSegment interface. Please see attached picture( It's a CATIA picture).
Bundle has no equivalent meaning. NX has routing path segments (centerline curves or lines), and stock. Stock can be mechanical stock like pipes and tubes, or electrical bundle stock which represents any number of wires and cables in a harness gathered together.
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