首页>
外国专利>
METHOD OF MEASUREMENT OF POWER FACTOR OF ELECTRIC WAVEFORM FOR PRECISELY DETERMINED TIME INTERVALO PROCESSA ZA TOCHNO OPREDELENNYJJ VREMENNOJJ INTERVAL
METHOD OF MEASUREMENT OF POWER FACTOR OF ELECTRIC WAVEFORM FOR PRECISELY DETERMINED TIME INTERVALO PROCESSA ZA TOCHNO OPREDELENNYJJ VREMENNOJJ INTERVAL