books أحواض تصريف مياه
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# drainage basins in china
# Drainage basins in Brazil
# drainage basins in australia
# Drainage basins in Bolivia
# Drainage basins in Peru
# Drainage basins in Russia
# Drainage basins in Africa
# Drainage basins in Asia
# Drainage basins in Oceania
# European drainage basins
# Drainage basins in Ecuador
# Drainage Basins Lists
# drainage basins in india
# Drainage basins in Germany
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حوض صرف مائي (Info)
حَوْض صرف مائيّ:- مياه تغمرها مياه النهر، منطقة تصبّ في نهر أو نظام نهريّ أو مسطَّح مائيّ آخر (معجم اللغة العربية المعاصرة)
