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air system ['eə'sɪstɪm]
archit.	通风系统装置
auto.	发动机进气系统
avia.	空气系统
refrig.	集中式通风系统
tech.	通风系统; 大气系统

air system: 1234 phrases in 38 subjects

Agriculture	5
Air defense	45
Animal husbandry	1
Architecture	7
Artificial intelligence	1
Automobiles	73
Aviation	387
Business	4
China	1
Construction	3
Drilling	4
Earth sciences	13
Ecology	4
Electric machinery	4
Electronics	124
Environment	4
Fishery fishing industry	1
General	24
Hydroelectric power stations	16
Information technology	2
Metallurgy	14
Nautical	15
Navigation	3
Nuclear and fusion power	1
Oil / petroleum	3
Rail transport	5
Refrigeration	77
Shipbuilding	4
Skydiving	2
Soil science	1
Space	122
Steel production	1
Technology	232
Textile industry	2
United Nations	3
United States	15
Water resources	3
Wind Energy	8