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+person:("zhang, haiyang")
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+person:("zhang, haiping")
Gas pipe and channel comprehensive arrangement structure for dual-fuel container ship
Anti-shaking protection device for lifting rope of crane
Traffic signal lamp recognition device for visually impaired people
Device for assisting people with visual impairment in taking bus
Voice interaction system and method based on vehicle-mounted camera
Automatic charging system and method for low-voltage battery of electric vehicle
Airplane horizontal tail elevator maneuverability test device and method thereof