99久久精品日本一区二区免费_欧美系列一区二区|HD中文字幕在线播放,色噜噜aⅴ在线,日韩精品欧美,20个姿势夹的男人爽到叫

The railway cargo inspection handheld is a special handheld device customized by the cargo inspection subject group according to the cargo inspection station. The system software of cargo inspection handheld machine interacts with "Railway Cargo Inspection Station Safety Monitoring and Management System" through 4G network (security platform authentication), receives the plan issued by cargo inspection platform for operation, feeds back the operation progress, takes photos of the problematic cars for storage and investigation, and automatically identifies the electronic blocking status.