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person:("chen, yunfei")
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person:("chen, yafei")
Charging circuit for heating battery pack at too low temperature and scooter
Construction mechanical device for lifting and use method thereof
Coaxial pipe structure of casing pipe type automobile air conditioner pipeline
Ship, inclined ladder foot fixing and damping device for ship and mounting method
Method for trial running-in of stern tube bearing in ship trial voyage
Pressure and liquid level control system for ship high-temperature water buffer cabinet
Charging method and system of charging pile, and computer equipment