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System auxiliary power supply device in deep space impact detection high impact environment
Single-drum 50kN static hydraulic grinding cylinder type traction machine
Reservation charging control method and device for electric vehicle and vehicle
No-time-limit control method and system for an automobile Bluetooth key
Mine hoisting system operation state key information input system
Lifting installation vehicle for fully-mechanized coal mining equipment
Intelligent charging pile for construction site and use method of intelligent charging pile
Cross-brace-free double-wall methanol fuel cabin structure of ultra-large oil tanker