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person:("chen lien")
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person:("chen liwei")
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person:("chen yiwen")
Charging station vehicle management system and control method
Charging station parking space property management system and control method thereof
Folding telescopic arm mechanism and overhead working truck
Mg-Zn magnesium alloy and Al-Cu-Mg aluminum alloy composite vehicle-mounted power device
Closed-loop control method for air conditioning set and diesel generating set
Towed body device of transducer of multifunctional echo detector