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开关式
comp. ping-pong
tech. switching regulator
开关 式: 308 phrases in 31 subjects
Air defense4
Architecture4
Automobiles37
Aviation10
Bridge card game1
Business1
Chemistry1
Compressors3
Construction1
Earth sciences1
Electric machinery20
Electronics46
General2
Genetics1
Geophysics1
Hydroelectric power stations19
Information technology6
Mechanics1
Metallurgy7
Oil / petroleum5
Plastics1
Project management1
Rail transport6
Refrigeration1
Securities1
Shipbuilding8
Space11
Technology103
Telecommunications2
Textile industry2
Wind Energy1