books earth water dam
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# ground water
# ground water pictures
# Surface disposal of ground water
# Ground water disposal
# ground water separator
# ground water reservoir
# ground water level
# What are the uses of dam water?
# Earth water geology
# Earth, dry and water
# How does water form the earth?
# Earth orbit
# planet earth
# earth snake
# Earth Guan
# medium earth orbit
# high earth orbit
# protective earth conductor
# your sense of the earth
# earth weather
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سد الماء الأرضي (Info)
سد الماء الأرضي:- جسم من مواد كتيمة أو قليلة النفاذية تحت سطح الأرض مما يسبب اختلافا كبيراً في منسوب الماء على جانبيه. (معجم الجيولوجيا)
