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Sitting position lifting and dropping system in bicycle running
Locking structure of differential mechanism and driving system with locking function
Complete vehicle anti-theft method and system based on lifting knob gear shifting and storage medium
Whole vehicle anti-theft method based on P-gear locking and storage medium
Control method of electronic gear shifter for autonomous parking
Field damage assessment method for structure static test and thermal strength test
Adjustable rocket boosting structure and method suitable for unmanned aerial vehicle