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回气 huíqì
eng.geol. return air
oil air return
回气: 356 phrases in 32 subjects
Agriculture2
Architecture3
Automobiles37
Aviation8
Chemistry1
Compressors4
Computer numerical control1
Desert science1
Earth sciences3
Ecology6
Electric machinery6
Electronics29
Environment1
Explosives and Explosive Ordnance Disposal5
Finances1
Food industry1
General10
Household appliances1
Hydroelectric power stations3
Metallurgy47
Nautical7
Oil / petroleum25
Oil processing plants12
Plastics4
Racing and motorsport1
Rail transport1
Refrigeration17
Shipbuilding2
Space8
Technology107
Textile industry1
Wind Energy1

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