Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym TR1 is...

TR1 is

  • Payload Furnished Mars Tape Recorder (1 of 2)

TR1 is also in:

Acronym Definition Searched: PF LA JCSI 49806 72104 SMPTRB RIBD OSFC LKU 69029 FAMSIM YRP WBFA QVVT DBSS