DS-SMF stands for Dispersion-Shifted Single-Mode Fiber
DS-SAR stands for Dual-Speed Synthetic Aperture Radar
DS-RT stands for Distributed Simulation and Real-Time Applications (IEEE Workshop)
DS/S stands for Data Services Segment
DS/R stands for Direct Support/Reinforcing
DS/PPM stands for Direct Sequence/Pulse Position Modulation
DS/PE stands for Distribution System/Premise Equipment
DS/NTP stands for Datum Secure Network Time Protocol
DS/HD stands for Double Sided/High Density