Municipal water supply pipeline construction structure
Speed measuring device based on twin elevator, twin elevator and monitoring method for twin elevator
Transfer mechanism and road guardrail mounting equipment
Mine slope ramp vehicle management and control device and method
Portable charging equipment for new energy electric vehicle
Forwards-driving foldable bicycle and luggage integrated device
METHOD AND APPARATUS FOR DETERMINING OPERATING STATE OF TRAFFIC LIGHTS, AND ELECTRONIC DEVICE
Electric motor vehicle traffic supervision method and system, network equipment and storage medium
Aircraft trajectory prediction and height allocation method based on airspace situation
Method and device for determining running state of traffic signal lamp, and electronic equipment
Pedestrian traffic safety early warning device and early warning method
Ore collection unmanned vehicle and autonomous collection method