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工业频率 gōngyè pínlǜ
el. network frequency
met. line-frequency; mains-frequency; line frequency
mil., air.def. commercial frequency
tech. mains frequency; power frequency
telecom. industrial frequency
工业频率我国为50Hz, 美国为60Hz gōngyè pínlǜ
telecom. power frequency
工业频率
: 7 phrases in 5 subjects
General1
Geophysics2
Metallurgy2
Oil / petroleum1
Technology1