R/D
Rate of Descent [Aviation] (MCD)
Rig Down (SAUS)
Rotary to Digital (MCD)
R&D
Reamed and Drifted (SAUS)
Research and Development (IDOE)
Rural Delivery (SAUS)
R & D
Read and Destroy
Requirements and Distribution (AFM)
Research and Demonstration [Labor training]
Risk and Death (MELL)
R-D
Resolver to Digital (VLIE)
Resolver-to-Digital (AEBE)
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