PDR
[1] Precision Depth Recorder (->""IEEE" Standard Dictionary")[2] Priority Data Reduction (->""IEEE" Standard Dictionary")
[3] Processing Data Rate (->""IEEE" Standard Dictionary")
[4] Public Document Room (->""IEEE" Standard Dictionary")
[5] Preliminary Data Requirements (->""NASA" Acronym List")
[6] Preliminary Design Review (->""NASA" Acronym List")
[7] Program Design Review (->""NASA" Acronym List")
[8] Processed Data Recorder (->""NASA" Acronym List")