A ranar 20 ga Agusta, 2020, hedkwatar gudanarwa na metro na Guangzhou, Cibiyar Binciken Metro ta Guangzhou, tare da Nanjing Junli Technology Co., Ltd., sun gudanar da gwajin gwajin ruwa na ruwa mai cikakken iko a ƙofar kofa ta Haizhu Square. Tasha. Ƙofar ambaliya ta atomatik mai amfani da ruwa ta yi nasarar toshe ruwa, kuma aikin ya yi nasara kuma an yaba masa sosai.
Lokacin aikawa: Satumba-08-2020