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Winter car washing method and system for intelligent rail train
Ventilation oil tank for aircraft lubricating oil system
Urban rail transit non-network application library and power supply system
Urban rail transit network-free vehicle base system and maintenance process thereof
Urban rail transit emergency command system and method
Surveying and mapping device based on unmanned aerial vehicle
Self-resetting displacement device of automatic vehicle base signal transponder
Rail wagon longitudinal and transverse combined vehicle depot and application thereof
Municipal road granite kerb carrying device and using method
Movable straddle type monorail electric induction type train body supporting device
Intelligent robot dust removal system and method based on machine vision
Intelligent patrol system of unmanned aerial vehicle based on parking apron cluster
Intelligent flexible manipulator device for purging bottom of metro vehicle
Integrated adjustable commercial vehicle plastic front lower part protection device
Information notification method and device, electronic equipment and medium