Thaum Lub Kaum Ob Hlis 2nd, 2020, Nanjing Municipal Bureau ntawm kev saib xyuas thiab kev tswj hwm tau tshaj tawm cov neeg yeej ntawm "Nanjing zoo heev patent khoom plig" xyoo 2020. Lub invention patent ntawm Nanjing Junli Technology Co., Ltd.
Lub hydrodynamic tsis siv neeg tig qhov teeb meem nta rau kev tsim qauv thiab kev tiv thaiv dej nyab tsis muaj hluav taws xob lossis cov neeg saib xyuas.
Post lub sij hawm: Feb-03-2021