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telecom. U-shaped filter
Makarov. T-section filter
образный фильтр: 52 phrases in 18 subjects
Antennas and waveguides3
Astronautics1
Communications1
Construction1
Drilling1
Electrical engineering4
Electronics20
Household appliances1
Makarov1
Mass media3
Molikpaq1
Oil / petroleum1
Oil and gas1
Pumps1
Technology4
Telecommunications4
Tengiz2
Transport2