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English thesaurus
oxygen service
abbr.	os

oxygen : 204 phrases in 24 subjects

Astronautics	19
Aviation	30
Chemical compounds	1
Chemistry	10
Construction	7
Ecology	3
Environment	8
General	3
Materials science	1
Medical	11
Metallurgy	10
Meteorology	3
Microelectronics	22
Military	29
Mineralogy	1
Oil and gas	7
Physiology	1
Scientific	22
Soil science	3
Space	1
Steel production	1
Technology	8
Transport	2
Travel	1