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person:(He, jing)
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person:(He, ming)
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person:(He, ying)
Straddle type monorail vehicle and single-shaft bogie thereof
VEHICLE BODY ATTITUDE ADJUSTMENT METHOD AND VEHICLE BODY ATTITUDE ADJUSTMENT SYSTEM
Unmanned aerial vehicle emergency lighting device based on Hetian twelve method
Vehicle body posture adjusting method and vehicle body posture adjusting system
Parallel charging system and method for electric motorcycle