首页>
外国专利>
DIGITAL CIRCUIT AVERAGING THE SUMS OF ENERGY OF RECEIVEDSIGNALS OF HYDROACOUSTIC ECHOS IN ELEMENTARY SECTION OF SHIP WAY FOR VARIABLE QUANTITY OF SOUNDING PULSES
DIGITAL CIRCUIT AVERAGING THE SUMS OF ENERGY OF RECEIVEDSIGNALS OF HYDROACOUSTIC ECHOS IN ELEMENTARY SECTION OF SHIP WAY FOR VARIABLE QUANTITY OF SOUNDING PULSES