Переклад англійською з японської: 流域面積
Словник: main流域面積名詞1 basin, 
 basinful, 
 catchment area, 
 catchment basin, 
 drainage area, 
 drainage basin, 
 lavatory, 
 river basin, 
 washbasin, 
 washbowl, 
 washstand, 
 watershed. 
 2 basin, 
 catchment area, 
 catchment basin, 
 cranial orbit, 
 drainage area, 
 drainage basin, 
 eye socket, 
 orbit, 
 orbital cavity, 
 river basin, 
 watershed. 
 3 basin, 
 catchment area, 
 catchment basin, 
 divide, 
 drainage area, 
 drainage basin, 
 landmark, 
 river basin, 
 turning point, 
 water parting, 
 watershed.