Water surface garbage cleaning device based on water ecological restoration
Plant protection unmanned aerial vehicle capable of precisely applying pesticide
Unmanned aerial vehicle rice seed and fertilizer simultaneous sowing one-time fertilization method
Unmanned aerial vehicle aerial seeding afforestation method
Deep sea fishery breeding work ship and breeding method thereof
Antriebseinheit sowie Mäher und elektrisch betriebene Strebe mit einer solchen Antriebseinheit