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person:(zhang, ding)
Motor rotor angle deviation estimation method and system and electric vehicle
Aircraft measurement system, short message communication method and storage medium
Intelligent monitoring system based on Beidou fusion positioning
Environment-friendly dust falling structure for civil construction site
Graduated rotary control panel for GIL (gas insulated metal-enclosed pipe line) replacement device
Lightning protection device of captive balloon communication system
GRADUATED ROTATION CONTROL DISC FOR GIL TUBULAR BUS REPLACEMENT DEVICE