Ụzọ kachasị mma na-adabere na nkọwa zuru ezu nke ngwa ọ bụla.
Ụfọdụ ibu dị ka nfuli submersible ekwesịghị iji obere ọsọ. Usoro mmalite ngwa ngwa na-abawanye
ọsọ ngwa ngwa na mmalite usoro, wee na-achịkwa osooso na nke fọdụrụ mmalite oge.
Oge nzipu: Dec-12-2023