Fertilizer applying system of remotely controlled plant protection plane
Fertilizer apparatus and plant protection airplane including same
High-voltage line auxiliary climbing device based on unmanned aerial vehicle
Electromagnetic adsorption device based on unmanned aerial vehicle
Sea-land universal type horizontal blade air assembly lifting appliance
External hanging type multi-angle adjusting turning gear
Gravity center self-adjusting type blade air assembly lifting appliance
Portable barring beam lifting appliance for offshore wind power impeller
Fabricated foldable self-adaptive rolling unloading channel and construction method thereof
Field damage assessment method for structure static test and thermal strength test
Electrically-controlled transport ladder piece for photovoltaic panels