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NTC-14.82 “Power saving technologies. The study of flux-flow oscillator”
NTC-20.01 “Ways of managing energy-efficient lighting”
NTC-20.02 “Energy saving technologies in lighting engineering”
NTC-20.03 “Photoelectric converters”
NTC-20.80 “Energy saving technologies. Wind turbine studies”
NTC-20.81 “Energy saving technologies. The study of the photoelectric energy converter – solar panel”
NTC-20.82 “Energy saving technologies. Solar power plant with tube collector”
NTC-20.83 “Energy saving technologies. Solar power unit with flat-plate collector”
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