Bird repelling method and repelling system for overhead towers
Device and method for improving positioning precision of marine surveying and mapping
EJECTION TYPE SEEDING METHOD AND EJECTION TYPE SEEDING UNMANNED AERIAL VEHICLE APPLYING METHOD
Floating water taking integrated device for surface water irrigation and use method
Friction wheel type material acceleration device with self-adaptive distance adjustment function
Full-automatic plant protection unmanned aerial vehicle supply platform
Intelligent desert tree planting and irrigation integrated robot