A gun taron kasa karo na 7 kan gina fasahar rigakafin bala'o'i da aka gudanar a birnin Dongguan na lardin Guangdong daga ranar 20 zuwa 22 ga watan Nuwamba, 2019, masanin kimiyya Zhou Fulin ya ziyarci tashar baje kolin fasahar kere kere ta Nanjing JunLi Technology Co., Ltd. atomatik ambaliya ƙofar. Nasarorin binciken da aka samu a kofa na katangawar ambaliyar ruwa ta samu karbuwa sosai daga wajen masana uku, wadanda suka hada da Malami Qian Qihu, masanin ilimi Ren Huiqi da masanin ilimi Zhou Fulin.
Lokacin aikawa: Janairu-03-2020