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E-bike power-assisted gear automatic adjusting device and adjusting method
Plug connector detection circuit and method and automobile circuit system
Bicycle riding time automatic timing method and system
E-Bike power assisting device and method for preventing false triggering
Interaction module for acquiring automobile information and judging automobile battery locking
Battery assembly for electric power-assisted bicycle and electric power-assisted bicycle
Reinforcing steel bar stacking and hoisting construction method
Bicycle torque transmission mechanism and system and electric power-assisted bicycle
BICYCLE TORQUE TRANSMISSION MECHANISM AND SYSTEM, AND ELECTRIC POWER-ASSISTED BICYCLE
Cleaning and maintaining device for high-speed rail bullet train
Method and device for controlling gas leakage, storage medium and gas energy vehicle