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DTRSDigital Trunked Radio System
DTRSDigital Tape Recording System
DTRSDepartment of Transport and Regional Services (now now Department of Infrastructure, Transport, Regional Development and Local Government; Australia)
DTRSDeployable Tele-Radiology System (US DoD)
DTRSDon't Touch Running System
DTRSDevelopment Test Requirement Specification
DTRSDecision-Theoretic Rough Set (computer science)
DTRSDaily Trunk Reporting System (Sprint)
DTRSDefense Transportation Reinbursement System
DTRSDevelopmental Testing Readiness Statement