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High Altitude Observatory
abbr.
HAO
IT, abbr.
HAO
(Space)
High Altitude:
31 phrases
in 11 subjects
Astronautics
2
Aviation
2
Communications
1
Earth sciences
1
General
3
Hobbies and pastimes
1
Life sciences
1
Medical
10
Meteorology
2
Technology
1
Transport
7
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