The invention provides a mechanical device capable of directly converting kinetic energy of surrounding motion into ascending kinetic energy.
提供了一种可把周围运动的动能直接换成上升动能的机械装置。
Vertical lifter
直升器
2020-12-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |