HL in NASA could mean:
Displaying 1-5 of 5 result(s).
HL
Hinge Line
in NASA
HL
Hydrogen Line
in NASA
HL
High Level
in NASA
HL
Hardline
in NASA
HL
Heel Line
in NASA




Similar to HL

AACB - Aeronautics and Astronautics Coordinating Board
AAD - Attitude Anomaly Detector
AAFE - AeroAssist Flight Experiment
AAFM - Acoustic Atomic Force Microscopy
AAR - After Action Review
AARL - Aeronautical and Astronautical Research Laboratory
AAV - Air Admittance Valve

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